The u. s. constitution gives congress the power to conduct trials in the u. s. supreme court combine state and federal trial courts create inferior courts as necessary close the state courts during a u. s. trial

create inferior courts as necessary

Create inferior courts as necessary

Explanation:

One court to rule them all. Even though the U.S. Constitution names only one court of the judicial branch—the U.S. Supreme Court—it also gives Congress the power to create inferior courts. Congress defines the rules for how states set up their own courts as well.

the correct answer is b.