A Student Runs an Experiment to Study the Effect That

A student runs an experiment to study the effect that a teacher has based on the size of their class.She uses 3 different teachers on 6 different class sizes.

A) Teacher SS: 3 df; Class size SS: 5 df; SSE: 10 df
B) Teacher SS: 2 df; Class size SS: 5 df; SSE: 11 df
C) Teacher SS: 2 df; Class size SS: 8 df; SSE: 11 df
D) Teacher SS: 2 df; Class size SS: 5 df; SSE: 10 df
E) Teacher SS: 3 df; Class size SS: 4 df; SSE: 12 df