HELP PLEASE I WILL MARK U AS BRAINLIST

The Constitution described the powers and responsibilities of the three branches of the federal government: a legislative branch, an executive branch and a judicial branch. The members of each branch would be chosen in different ways: executive by Electoral College, legislative by popular vote and judicial by executive appointment. Furthermore, each branch would wield different powers. The legislative branch would write laws, the executive branch would carry out laws and the judicial branch would judge laws and interpret the Constitution. The delegates gave each branch specific powers and limitations. That way the three could "check" each other’s power to create a balanced government.

Based on the passage, which branch of government is responsible for deciding if a person’s actions are constitutional?

A the legislative branch
B the executive branch
C the judicial branch
D none of the above