Which One of the Following Statements Best Summarizes the Discussion

Which one of the following statements best summarizes the discussion in the textbook regarding planning, instruction, classroom environment, assessment, and student characteristics?

A) Student characteristics affect planning, which in turn affects instruction, classroom environment, and assessment.
B) Planning precedes both instruction and classroom environment, which in turn affects both student characteristics and assessment.
C) Each of them influences the other four.
D) How student characteristics will be assessed affects planning, instruction, and the classroom environment.