Technology & Software (Adjusted for more specificity, actual chosen category would be closest but still doesn't match well: "Technology")

Based on the content "BigBang Core Indonesia", I'm selecting the category "Technology & Programming". This is because BigBang is known as the development project of the Cosmos blockchain, which counts as a part in the broader cryptocurrency & blockchain innovation area but even more broadly in the periphery still in the wide technology and software-related applications.

Information Technology (the exact name of the category is "Technology & Programming") meets the prioritized list, but a more specific category exists - that is "Other / Unclassified" does not apply.

Information and Communications Technology, more specifically, Technology & Programming

Technology & Programming (Although note: there seem to be various issues and categories more accurately like IT news channel which "Pets & Animals could possibly categorial relate and that 'Business can contain technology for specific examples". Nonetheless as directed 'Programming Category" appears sufficient).

"Telegram" can be a fitting category for this problem since the platform is generally categorized under the umbrella of technology, specifically messaging apps and services. However, taking into consideration the variety of apps and services available within the category, and to narrow it down more specifically fitting the provided list, the most relevant category for "Telegram" would be: Technology & Programming

Based on the title "Telegram", it seems to be more closely related to Technology. "Technology & Programming"

To identify which category the Telegram entity falls into, we would need more information about the entity (e.g., what it is exactly). However, given the title you provided, "|" in isolation, Technology seems the most fitting category. Technology & Programming

None of the categories fit. However, a specific technology-related category fits the most from the list - specifically a subcategory in the list: "Ethical Hacking & Cybersecurity" or, more generally, "Technology & Programming".

Web Development Note: Given the generic term "Telegram", I considered that it primarily serves as an application for user-to-user texting. However, given the breadth of the topics in the Telegram entities list I narrowed it to 'Technology and Programming' Given the fact that Telegram’s entity is deeply intertwined with multiple technology and Programming functionalities, making this the relevant choice. If further clarification could have been garnered then a much more specific topic such as "Applications and Software or Internet and Digital Media" can also be possibilities but the chosen is the correct

Information Technology, more specifically Technology & Programming.

Technology & Programming, more specifically since the title mentioned "system": Technology & Programming