Complete this statement, "Parental involvement in students' mathematical development..."
A) Can be positive when parents make derogatory comments about their own math skills and negative feelings about mathematics.
B) Can have a negative impact when teachers help parents understand the ways they can support their students' achievement.
C) Can have a positive or negative effect, regardless of the circumstances.
D) Can be positive when parents provide their children with a quiet workplace and rules about homework completion.