Which of these statements is/are correct?

Question

Consider the following statements:

When a perfect gas enclosed in cylinder piston device executes a reversible adiabatic expansion process  

1. Its entropy will increases
2. Its entropy change will be zero
3. The entropy change of the surroundings will be zero

Which of these statements is/are correct?

(a) 1 and 3                   (b) 2 only

(c) 2 and 3                   (d) 1 only