In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
A person who believes that only selfishness motivates human actions

Options

A. Castles were used as offices of administration during the middle ages.
B. Stone is more resistant to fire than wood.
C. William the Conqueror built the first castles in England.
D. It is unfortunate that castles no longer serve their original purposes.

Answer

D

Explanation

It is an opinion. It says "it is unfortunate that castles no longer serve their original purpose". This may be author.s opinion on castles being no longer used for their orignal purpose i.e. to serve as base of operation for offensive attack.