I think D, it's the only one that makes it clear that it is a person taking a nap - the other sentences could suggest it's the stove or the curtains (or both!) taking a nap :)
B ) to look for general information on a topic
Answer:
The concept of Unity in Diversity is effective <u>in solving various social problems.</u> This is possible as diverse people tend to know each other. Consequently, this increases mutual respect among the people. ... Above all, the concept allows people of different religions, cultures, castes, to live together peacefully.
Look up what that is and give an opinion of what you think...................
