TASK DEFINITION: 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').
PROBLEM: Lions have ____ distinct vocalizations including roars, grunts and growls.\Question: Choose the right answer from options given a) eight b) six c) four d) nine

SOLUTION: d

PROBLEM: Shamrocks can be ____ of four leafs.\Question: Choose the right answer from options given a) six b) seven c) zero d) three

SOLUTION: d

PROBLEM: Octagons have a centered symmetry with ____ axes.\Question: Choose the right answer from options given a) eight b) no c) two d) zero

SOLUTION:
a