1)

SEDATIVE : SLEEP::


A) challenging : knowledge

B) mnemonic : memory

C) dramatic : story

D) vocal: eloquence

Answer:

Option B

Explanation:

(THIHG AND PURPOSE) A sedative acts as an aid to sleep; a mnemonic (such as V1BGYOR, a word made of the first letters of the sequential colors of the rainbow) acts as an aid to memory. (B)