What was the significance of xerxes

Xerxes’s significanceis in his ambitions of conquering Greece, but his power and large armies made him end up underestaminating his foes, leading to most people and history book writers seeing him as a king that gained nothing and brought about the beginning stages of the Persian decline.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

try c, it's always the answer. pats suck.