The most likely answer would have to be social sci-fi.
The answer is D, "for two weeks". It can be assumed that the word "weeks" applies to a period of time.
Answer A does not specify the number of weeks
Answer B is actually less concise
Answer C is more roundabout than the original statement.
Answer:
A. Extent of the emotional investment in sports.
The fourth answer because it is not to casual but not too formal at the same time
