Which of the following correctly revises the sentence so that it is entirely in the active voice?

Question

It has been decided by the school that the class should not be evaluated by their regular teacher; instead, the assessment should be performed by a visiting scholar.
a. It has been decided by the school that the regular teacher should not evaluate the class: instead, the assessment should be performed by a visiting scholar.
b. The school has decided that the class should not be evaluated by their regular teacher; instead, a visiting scholar should perform the assessment.
c. It has been decided by the school that the regular teacher should not evaluate the class; instead, a visiting scholar should perform the assessment.***

Answer 1

Right!