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
Solution
Correct Answer: Option D
বাক্যের structure এবং অর্থের সামঞ্জস্যতার জন্য অপশন (ঘ)-ই সবচেয়ে প্রাসঙ্গিক। সাধারণত noun / pronoun এবং relative pronoun পাশাপাশি বসে। বাক্যের noun-টি বস্তুবাচক হওয়ায় relative pronoun হিসেবে that বসেছে।