Please help me out for 10 points and a Brainliest!

Which statement describes a similarity between the state and the federal governments under the U. S. Constitution?

Select one or more:

a. Both levels of government have the power to appoint ambassadors.

b. Both levels of government have the power to ratify treaties.

c. Both levels of government allow for the election of judges.

d. Both levels of government allow for the collection of taxes.