Answer:
B. double-click the format painter command
Step-by-step explanation:
Double-clicking the format painter will keep the brush icon on your cursor so you can click whatever text you wish to change until the command is clicked again.
I've seen a lot of other questions with the answer A. Duplicate the object and I just don't understand how that makes sense. I got an 80% on my test with this answer so hopefully, it helps even though it's late!