Congress passed the Civil Rights Act of 1964 using this Constitutional authority.

Acommerce power
Cprotection of states' citizens
Btaxing power
Dwar powers

Verified Answer :

Congress passed the Civil Rights Act of 1964 using this Constitutional authority and this was a c) protection of state's citizens. The Civil Rights Act of 1964 is defined as a "landmark piece of civil rights legislation in the United States that outlawed discrimination based on race, color, religion, sex, or national origin."