Telecommunications / Internet Platforms seems to be missing and would have fit perfectly in "Technology & Programming". Therefore, I select this category as the most specific and relevant. Technology & Programming

Telecommunications, but most fitting answer would be Technology & Programming

Telecommunications

Telecommunications (implied by being on the system category but the category that fits the most would be) Technology & Programming

Mobile telecommunications service

Mobile Technology & Telecommunications is not in the list but "Technology & Programming" is the most relevant category.

Telecommunications

Software technology is directly associated with telecommunications which is the sector in which Telegram operates. Technology & Programming

Telecommunications, more specifically (though the list isn't too wide-ranging for that), "Technology & Programming"

Telecommunications/ can fall under multiple categories, but most relevant one is: Information Technology