All training involves education but not all education involves training

As she explained the nature of the affliction, Sandy said:

"Depression often sneaks up on a person. It is careful not to startle its prey but moves in quietly, subtly." Sandy has used which figure of speech to help her audience understand depression? A) Simile B) Antithesis C) Alliteration D) Personification

The name for Google originated from the mathematical term ________

Fill in the blank(s) with correct word