Ludere means to trick. Collusion is secret, illusion is a trick, elude is to avoid escape. These are not options. A prelude is an introduction - almost like a taste to trick you into reading, hearing, seeing more. An ablution is a washing - not connected to a trick at all. Ablution is your answer.
Answer
A-- Whose
Explanation:
The five interrogative pronouns are what, which, who, whom, and whose.
Ill try but i think your reffering to Goosebumps.