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PLEASE HELP WILL GIVE BRAINLIEST TO CORRECT ANSWER

When can primary succession occur?
A.after a glacier forms, a volcano erupts, or when a strip mine is productive
B.after a glacier receded, a volcano forms, or when a strip mine is abandoned
C.after a glacier recedes, a volcano erupts, or a strip mine is abandoned
D.after a glacier recedes, a volcano forms or a strip mine is productive

IS IT B OR C?