Seja A {2, 3, 4} e B {5, 6, 7}, assinale a seguir a relação ...

Seja A {2, 3, 4} e B {5, 6, 7}, assinale a seguir a relação R que seja simétrica:

R = {(2, 5), (2, 6), (3, 5), (3, 6), (3, 7), (4, 6), (5, 2), (5, 3), (6, 2), (6, 3), (6, 4), (7, 3)}.

A

R ={(2,5), (2,6), (3, 5), (3,6), (3,7), (4,6), (5,2), (5,3), (6, 2), (6,3), (6,4), (7,2)}.

R = {(2,6), (3, 5), (3,6), (3,7), (4,6), (6,3), (6,4), (7,3)}.

C

D

R = {(2,6), (3, 5), (3,6), (3,7), (4,6), (5,2), (5,4), (6,3), (6,4)}.

E

R = {(2,5), (2,6), (3, 5), (3,6), (3,7), (4,6), (5,2), (5,4), (6, 2), (6,3), (6,4), (7,3)}.

B