Answer:

Explanation:
Given

Required
Power of term with coefficient of 1
First, we need to identify the variable in the given polynomial
The variable is x
Each term has the following format:
where
and m is the coefficient
In this case, we are to look for n where m = 1
Looking at each term of the polynomial, we have the following match:

Substitute 1 for m


By comparison:

Hence, the solution to this question is (B)