Which of the following relations is symmetric but neither reflexive nor transitive for a set A = {1, 2, 3}.

Options :

1. R = {(1, 2), (1, 3), (1, 4)}

2. R = {(1, 2), (2, 1)}

3. R = {(1, 1), (2, 2), (3, 3)}

4. R = {(1, 1), (1, 2), (2, 3)}