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: Tropical trees can be rampant growers, and can outgrow a wiring in as little as ____ days' time.\Question: Choose the right answer from options given a) four b) eight c) six d) ten

SOLUTION: d

PROBLEM: 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

SOLUTION: a

PROBLEM: Sprawl destroys ____ million acres of farmland every two years.\Question: Choose the right answer from options given a) one b) seven c) five d) six

SOLUTION:
a