By day, hippos enjoy bathing in water to cool themselves down, 'which might have contributed to their reputation for being' relatively sluggish and sedentary.
A
which might have contributed to their reputation for being
B
which might contribute to its reputation for being
C
and this might have contributed to their reputation to be
D
a preference that might contribute to their reputation for being
Correct Answer: a preference that might contribute to their reputation for being