The han dynasty began the practice of teaching confucianism in china’s schools. what lesson would han rulers want students to learn from this practice?

Confucianism stresses social structure and the obedience to the one superior to oneself: wife to husband, child to parent, but also subject to ruler. So teaching Confucianism effectively taught the people to obey their leaders, the Han!

It's most likely choice a, it makes the most sense in my opinion.

The repetition of initial consonant sounds is called alliteration