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: Poles CAN occur at ____ frequency.\Question: Choose the right answer from options given a) six b) four c) zero d) eight

SOLUTION: c

PROBLEM: Chimeras are ____ headed creatures that shoot fire from all three heads, damaging a wide area.\Question: Choose the right answer from options given a) three b) one c) eight d) six

SOLUTION: a

PROBLEM: Tilt consists of ____ small surface vents.\Question: Choose the right answer from options given a) zero b) three c) seven d) no

SOLUTION:
b