The most popular activities carried out on smartphones is a. texting b. watching movies c. e-mailing d. gaming

Texting

Explanation:

92% of smartphone users are currently texting, 84% of users are net browsing, 76% of users are sending e-mails, 64% of users are playing games, 69% of users are accessing downloaded apps, 59% of users are posting using social networking, and 48% of users are playing multimedia (videos/music).

Furthermore, the correct answer is A.

answer: internal fragmentation is the difference between the (fixed) size of a memory hole and the data within in that memory. for example, if a 1,024 byte block of memory holds 800 bytes of data, then the 224 bytes difference is considered lost to internal fragmentation.

external fragmentation occurs when the sum of memory fragments is large enough to satisfy a request, but the holes are non-contiguous and the request cannot be satisfied. this can occur when memory is dynamically allocated and freed.

explanation: