The correct answer to this open question is the following.
There is no question here, just a series of concepts. What is your question? What do you want to know?
However, trying to help you, we can comment on the following.
It seems that here we are talking about the questionary to identify personalities known as the Myers-Briggs Type Indicator or simply MBTI.
To be more specific, psychologists use this introspective report to know more about the different personalities of an individual. It is a good instrument that allows psychologists to understand how people see the environment that surrounds them and the way these people make decisions and act correspondingly.
The four types of this Myers-Briggs Type Indicator are Extraversion and Introversion, Sensing and Intuition, Thinking and Feeling, and Judging and Perceiving.
The answer is C. The question translates to "How many books are there?"
