Let P and Q be two non-void relations on a set A. Which of the following statements are correct?
I. P and Q are reflexive ⇒ P ∩ Q is reflexive.
II. P and Q are symmetric ⇒ P ∪ Q is symmetric.
III. P and Q are transitive ⇒ P ∩ Q is transitive.
Select the answer using the code given below.
1
I and II only
2
II and III only
3
I and III only
4
I, II and III