Let A, B, and C be three events in a sample space , such that A

Let A, B, and C be three events in a sample space Ω, such that A ∪ B ∪ C = A. Then, the following is always true:

(a) B ∪ C = A

(b) B ∪ C ⊆ A

(c) A ⊆ B ∪ C

(d) BC = A

(e) A ⊆ BC.