I believe the answer would be C, its. Its is used to describe something that's connected to an animal or an inanimate object.
The correct answer is: A. uploading to and posting on the Internet is so easy
Nowadays with the advent of social networks/ media, and the sharing function, It has been of a great contribution to the fast dissemination of information, posts, photos, music, videos, all over the planet, through a simple sharing of something of considerable relevance in virtual sphere. In the search for this shared information in a viral way on the internet, we find some specific words or hashtags that lead us to an excessive and almost unlimited number of shares in the shortest possible time across the globe.
