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').

Q: Electrons have almost ____ mass and are negatively charged.\Question: Choose the right answer from options given a) three b) seven c) zero d) no

A: d
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Q: Traditional neon electrifies the inert gas from ____ directions.\Question: Choose the right answer from options given a) two b) nine c) one d) six

A: a
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Q: Osteoporosis is a disease that hits women ____ times as frequently as men.\Question: Choose the right answer from options given a) ten b) five c) three d) six

A:
c
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