PT 22 S4 Q26

A member of the British Parliament is reputed to have said, The first purpose ... ...

Which one of the following, if true, most seriously weakens the argument attributed to the member of Parliament?
(A) Different things make different people happy.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: "Weaker" Questions, Set 3 - Difficult/Uncommon Mix (25Q)