In ancient China, Confucius’ message to leaders that they needed to lead by example caused leaders in China to

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.

can someone just answer this

not sure but thinking i'ts cause the government was broke. not sure