Bunuel
Unlike Walt Whitman's gregariousness, Henry David Thoreau had far more of a penchant for lingering in the stillness of the forest than to soak up the energy of a bustling crowd.
(A) Unlike Walt Whitman's gregariousness, Henry David Thoreau had far more of a penchant for lingering in the stillness of the forest than to soak up
(B) Unlike Walt Whitman's gregariousness, Henry David Thoreau had far more of a penchant to linger in the stillness of the forest than for soaking up
(C) Unlike the gregarious Walt Whitman, Henry David Thoreau had far more of a penchant for lingering in the stillness of the forest than to soak up
(D) Unlike the gregarious Walt Whitman, Henry David Thoreau had far more of a penchant for lingering in the stillness of the forest than for soaking up
(E) Unlike the gregarious Walt Whitman, Henry David Thoreau had far more of a penchant to linger in the stillness of the forest than for soaking up
Magoosh Official Explanation
Split #1: the comparison. We need to compare a person to a person, or a quality to a quality. All five answer choices have the person "Henry David Thoreau" after the comma, so before the comma we also need a person. Choices (A) & (B) have "Walt Whitman's gregariousness", a quality of a person, so these have an illogical comparison. Choices (C) & (D) & (E) correctly compare a person, "the gregarious Walt Whitman," to a person, so only these could be correct.
Split #2: idiom + parallelism. First of all, a tricky idiom involves the word "penchant" --- the correct idiom is "penchant for" + [participle], not "penchant" + [infinitive] --- "penchant for lingering" is correct, and "penchant to linger" is idiomatically incorrect. BUT, even if you didn't know this idiom, look at the parallelism: the verbs "linger" and "soak" must be in parallel form. Look at the last three choices. We have
(C) "lingering" (participle) and "to soak" (infinitive) ---- not parallel
(D) "lingering" (participle) and "soaking" (participle) ---- parallel
(E) "to linger" (infinitive) and "soaking" (participle) ---- not parallel
Even if you didn't know the correct idiom, only choice (D) has the two verbs in parallel --- and following the correct idiom.
Choice (D) is the only possible answer.