Study the diagram given below and answer the questions based on it.
`triangle` represents Persons who like Reading
represents Persons who like Cycling
`square` represents Persons who like Trekking

How many persons like Trekking and Reading but not Cycling ?
A. 12
B. 31
C. 44
D. 28

Options

A. B
B. C
C. A
D. D

Answer

D