A relation R is said to be circular if aRb and bRc together imply cRa. Which of the following options is/are correct?

if a relation S is circular and symmetric, then S is an equivalence relation.

If a relation S is transitive and circular, then S is an equivalence relation.

If a relation S is reflexive and symmetric, then S is an equivalence relation.

if a relation S is reflexive and circular, then S is an equivalence relation.

A relation R is said to be circular if aRb and bRc together imply cRa.

1.	A relation R is said to be circular if aRb and bRc together imply cRa. Which of the following options is/are correct?
A.	If a relation S is transitive and circular, then S is an equivalence relation.
B.	If a relation S is reflexive and symmetric, then S is an equivalence relation.
C.	if a relation S is reflexive and circular, then S is an equivalence relation.
D.	if a relation S is circular and symmetric, then S is an equivalence relation.
Answer» D. if a relation S is circular and symmetric, then S is an equivalence relation.