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').

Guinea has ____ territories or colonies.\Question: Choose the right answer from options given a) no b) seven c) three d) eight
a

Some experts believe whining peaks around the ages of ____ or four.\Question: Choose the right answer from options given a) three b) no c) four d) seven
a

Declination increases from ____ with latitude away from the equator.\Question: Choose the right answer from options given a) three b) zero c) five d) seven

b