Which of the following pair of events would be the best exam

Which of the following pair of events would be the best example of two
mutually exclusive events?

A. A: it snows today. B: it snows more than 2 inches today.

B. A: a die lands on 2. B: a coin lands on head.

C. A: it rains at 6 p.m. today. B: it rains at 6:10 p.m. today.

D. A: Boston Celtics win NBA Champion next year. B: LA Lakers win NBA
Champion next year.

Solution

option B     A: a die lands on 2. B: a coin lands on head.

as it talks about different events, die and a coin

but in other options the same events are talked about.