Correct option is A
The correct phrase is (a) a break from social media.
Explanation:
The correct preposition used with “break” in this context is “from”, which indicates separation or withdrawal.
Correct sentence: Shebna decided to take a break from social media, but she found it difficult to disconnect completely.
Grammatical Rule:
“Take a break from + noun” is the standard expression.
Example: I’m taking a break from work next week.
Other options are grammatically incorrect or meaningless.