generally nocturnal or most active after sunset

Consider the following fauna:

1. Lion-tailed Macaque
2. Malabar Civet
3. Sambar Deer

        How many of the above are generally nocturnal or most active after sunset?

        (a)   Only one

        (b)   Only two

        (c)   All three

        (d)   None

UPSC OFFICIAL ANSWER A  ( 1 Only) Here might be they have taken Sambhar deer as wrong which is  crepuscular

A

·        
 Lion-tailed Macaque : is diurnal, meaning it
is active exclusively in daylight hours.

·        
Malabar civet is considered nocturnal 

·        
The sambar is a large deer native to the Indian
subcontinent. They are nocturnal or crepuscular, and generally
consistent in colour around the body, and can vary from yellowish-brown to
almost dark grey.