In Order to Discover Whether the Goldsmith Had Used Cheaper

Multiple Choice

In order to discover whether the goldsmith had used cheaper metals in the king's crown,Archimedes checked all the known methods for analyzing metals and found that all involved cutting or melting the crown.So,he was forced to temporarily set the problem aside.This stage of creative thought in which the problem is set aside for awhile is known as

A) orientation.
B) illumination.
C) preparation.
D) incubation.