Bunuel
Ms. Kardon spent three years studying the puffin in order to learn more about
their social organization, mating rituals, and foods that they prefer.
(A) their social organization, mating rituals, and foods that they prefer
(B) their social organization, mating rituals, and their preferred foods
(C) its social organization, mating rituals, and preferred foods
(D) its social organization, mating rituals, and about preferred foods
(E) social organization, mating rituals, and foods that are preferred
+1 for C(A)
their social organization, mating rituals, and foods that they prefer --> 'Puffin' requires 'it'
(B)
their social organization, mating rituals, and their preferred foods --> Same as A
(C)
its social organization, mating rituals, and
preferred foods --> Rectifies pronoun error and maintains parallelism
(D) its social organization, mating rituals, and
about preferred foods --> Parallelism error.
(E)
social organization, mating rituals, and foods that are preferred --> Change in meaning due to missing pronoun