The system of judicial review in India allows the courts to:

Strike down laws that violate the Constitution
Appoint government officials
Issue directives to the executive branch
All of the above

The correct answer is: Strike down laws that violate the Constitution.

Judicial review is the power of the courts to declare laws unconstitutional. In India, the Supreme Court has the power of judicial review. This means that the Supreme Court can strike down laws that it finds to be unconstitutional. The Supreme Court can also strike down executive orders and administrative regulations that it finds to be unconstitutional.

The power of judicial review is an important check on the power of the legislature and the executive branch. It ensures that laws are consistent with the Constitution and that the government does not overstep its bounds.

The other options are incorrect. The courts cannot appoint government officials or issue directives to the executive branch. These are powers that are reserved for the legislature and the executive branch, respectively.

The power of judicial review is a fundamental principle of Indian democracy. It is a safeguard against tyranny and ensures that the government is accountable to the people.