Sentence Correction

St. John's, Newfoundland, lies on the same latitude as Paris, France, but in spring St. John's residents are less likely to be sitting at outdoor cafes than to be bracing themselves against arctic chills, shoveling snow, or seeking shelter from a raging northeast storm.
(A) residents are less likely to be sitting at outdoor cafes than to be bracing themselves against arctic chills, shoveling snow, or seeking
(B) residents are less likely to sit at outdoor cafes, and more to be brace themselves against arctic chills, shovel snow, or be seeking
(C) residents are less likely to be sitting at outdoor cafes, and more likely to be bracing themselves against arctic chills, shoveling snow, or to be seeking
(D) residents, instead of sitting at outdoor cafes, they are more likely to be brace themselves against arctic chills, shovel snow, or seek
(E) residents, instead of sitting at outdoor cafes, are more likely to brace themselves against arctic chills, shovel snow, or to be seeking

OA is A. Whats wrong with C?

{C} Residents are "X" and "Y", VERB+IN, or to be seeking

{A} Residents are "X" and "Y", VERB+ING, or VERB+ING

In {C}, the adverbial modifier is not parallel