B. Citizens over the age of 65 use social media primarily to follow the activities of their families.
Explanation:
The passage states "Most of their feeds consist of posts by their relatives." Of all of the answer choices, only B reflects back on families, leading it to be our answer.
<h3>I hope this was helpful! Let me know if you need any further explanation.</h3>
Courage is a virtue seems like the answer, but I haven’t read the book. Though, I’m making an education guess because it takes courage to go to the moon.
