C because it makes more sense
The firm had an excellent SAFETY record
That was very IRRESPONIBLE of you to do
They say the most important quality to become a teacher is PATIENCE
The country's economy needs a quick RECOVERY after the financial crisis
A mother would do anything to keep her child out of DANGER
Unfortunately, there were very few SURVIVORS after the train crash
It's SURPRISING that you failed the test after studying for weeks
It's illegal to phone the emergency services and give them UNTRUTHFUL information
The correct answer is B. Make. So the complete phrase is "Children often make up imaginative stories.
Explanation
"Makeup" is a verb that refers to the action of inventing something; is an action that involves the imagination and creativity to innovate. Additionally, this action is very related to children because in the early years, people tend to ignore reality and create their world. According to the above, the correct answer is B.