Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').

Ex Input:
Adult tarantulas require a minimum of ____ to five crickets a week.\Question: Choose the right answer from options given a) seven b) three c) four d) five

Ex Output:
b

Ex Input:
Carnations grow well in a garden spot that receive ____ to five hours of sunlight per day.\Question: Choose the right answer from options given a) eight b) three c) one d) four

Ex Output:
d

Ex Input:
Iambic tetrameter has four such feet, for a total of ____ syllables.\Question: Choose the right answer from options given a) zero b) two c) five d) eight

Ex Output:
d