1.Let A={p,q,r}A = \{p, q, r\}A={p,q,r}. Which of the following is an equivalence relation in AAA?a.R1={(p,q),(q,r),(p,r),(p,p)}R_1 = \{(p, q), (q, r), (p, r), (p, p)\}R1={(p,q),(q,r),(p,r),(p,p)}b.R2={(r,q),(r,p),(r,r),(q,q)}R_2 = \{(r, q), (r, p), (r, r), (q, q)\}R2={(r,q),(r,p),(r,r),(q,q)}c.R3={(p,p),(q,q),(r,r),(p,q)}R_3 = \{(p, p), (q, q), (r, r), (p, q)\}R3={(p,p),(q,q),(r,r),(p,q)}d.none of theseLogin to continueOnly logged in users canattempt or see the solution.
