Final answer:
In a sequence, the domain refers to the set of values that the terms of the sequence can take. Without any additional information, it is not possible to determine which term is not possible in the domain.
Step-by-step explanation:
In a sequence, the domain refers to the set of values that the terms of the sequence can take. In this case, the possible terms in the sequence are given as options a) 50, b) 3, c) -5, and d) 12.
To determine which term is not possible in the domain, we need to consider the restrictions or rules of the sequence.
Without any additional information, we cannot definitively determine which term is not possible in the domain.
Therefore, the correct answer is d. None of the above.