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').

Granite occurs in ____ separate masses.\Question: Choose the right answer from options given a) two b) eight c) nine d) no
a

Sexual maturity occurs at three to four years for females and ____ to five years for males.\Question: Choose the right answer from options given a) nine b) seven c) five d) four
d

Mental illness is more common than many people realise, affecting ____ in four of the population.\Question: Choose the right answer from options given a) eight b) one c) four d) five

b