Consider the following statements with reference to mutual delegation of functions between Centre and states:
1. Centre can delegate both legislative and executive powers to the states.
2. Mutual delegation of administrative functions may be conditional or unconditional.
3. President can delegate executive functions to the states without latter's consent.
4. State Legislature may, with the consent of the Central government, delegate to them any of the executive functions of the state.
How many of the above statements are correct?