Consider the following statements regarding surge impedance loading (SIL)

1. Both sending end and receiving end power factors are unity whenever loading is equal to surge impedance loading (SIL).

2. If loading is more than the SIL the transmission line acts as a sink of reactive power.

3. If loading is less than SIL the magnitude of receiving end voltage is more than the magnitude of sending end voltage.

Which of the above statement(s) is/are correct?