Based on the provided text and the prompt about comparing "Popular Problems" to "Free," the key difference in how the two selections portray wealth and happiness can be articulated as follows:
A) “Popular Problems” suggests wealth can lead to isolation, while “Free” presents it as unnecessary for happiness.
In "Popular Problems," the example given highlights how despite Starks' wealth, which brings him material goods and social advantages, he experiences loneliness and a lack of genuine friendships. On the other hand, the text hints that happiness can be found in relationships, as seen when Randall invites Starks to his home and fosters a genuine friendship despite his own family's lesser financial status.
This interpretation aligns with option A, emphasizing that wealth does not equate to happiness and can, in fact, lead to feelings of isolation. Therefore, A is the correct choice.