Which statement best reflects the solution(s) of the equation?

a. there is only one solution: x = 1. the solution x = 2 is an extraneous solution.

b. there is only one solution: x = 2. the solution x = 0 is an extraneous solution.

c. there is only one solution: x = 2. the solution x = 1 is an extraneous solution.

d. there are two solutions: x = 1 and x = 2.