under the principle of judicial review, the federal courts have the power to strike down laws that are unconstitutional. when in the lawmaking process does this happen?

a. after it becomes law, and only if someone sues and the case makes it to federal court
b. right after the president signs it into law
c. before the law is sent to the president
d. before the law is introduced in the senate

a. after it becomes law, and only if someone sues and the case makes it to federal court