Answer:
A, B and D are correct options.
Explanation:
When two events cannot occur at the same time, then the events are said to be not mutually exclusive.
The examples are:
(A) a light switch being in the on position or being in the off position. It can either be on or off, but not both.
(B) a six-sided die rolled once and rolling a 3 or rolling a 4. It can either be 3 or 4 but not both.
(D) a coin flipped once landing on heads or landing on tails. It can either be a heads or a tails but not both.