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: Snowflakes are crystals that have many different shapes, but each snowflake has ____ points on it.\Question: Choose the right answer from options given a) six b) nine c) one d) seven

SOLUTION: a

PROBLEM: Vampires generally are male, and rabies is ____ times more frequent in men than in women.\Question: Choose the right answer from options given a) no b) two c) zero d) seven

SOLUTION: d

PROBLEM: Team handball is played with seven players per side, six court players, and ____ goalkeeper.\Question: Choose the right answer from options given a) no b) one c) six d) seven

SOLUTION:
b