Let R and S be any two equivalence relations on a non-empty set A. Which one of the following statements is TRUE?

A | R ∪ S, R ∩ S are both equivalence relations |

B | R ∪ S is an equivalence relation |

C | R ∩ S is an equivalence relation |

D | Neither R ∪ S nor R ∩ S is an equivalence relation |