Read the following sentence:
Martha's sagacity was shown in her good advice and
shrewd financial planning.
What is the most likely meaning of "sagacity" as it is used in this sentence?
O
A. Intellect
O
B. Wisdom
O
C. Power
O
D. Goodness

I say D , if you look up sagacious then it will tell you that it is good.

The correct answer is D. mob - move.
The root is the basic part of a word which is used to create other words by adding prefixes and suffixes to it. Here, that tiniest part of the word immobilize is mob, which comes from Latin and means to move. By adding the prefix im- you created the negative form of the verb, and by adding the suffix -ilize, you created that particular verb.