Which statement best describes what the concept of checks and balances means in relation to the U.S. government?

Question

The executive branch is the most powerful branch and keeps all other branches in check.
The judiciary is the least important branch and does not have any ability to check or balance the other branches.
All branches of government are equally important and each branch has ways to check the other two branch's powers
Checks and balances only applies to one's personal finances.

Answer 1

All branches of government are equally important and each branch has ways to check the other two branch's powers