Identify the High School Teacher Who Is Assigning Class Grades

Identify the high school teacher who is assigning class grades in an appropriate manner.

A) Ms.Nordstrum bases her final grades on fifteen in-class projects and test scores; although she does not grade the accuracy of students' homework assignments, she takes into account whether they have turned in their homework regularly.
B) Ms.Lansing uses a single final exam that has high content validity for the curriculum she has covered and yields highly reliable scores.
C) Mr.Pottier uses as much data about each student as he can get his hands on; in addition to using test scores and homework assignments, he also rates students' performance in question-answer sessions and cooperative learning groups.
D) Mr.Robbins grades his students on three major exams, giving equal weight to each one.He has made sure that each exam has content validity for the material it is meant to cover.