Which One of the Following Statements Is Consistent with Research

Which one of the following statements is consistent with research findings described in the textbook?

A) Repeating something over and over is usually the most effective way to learn it.
B) Tailoring instruction to students' individual learning styles does not noticeably increase students' learning.
C) For optimal performance,students should never feel any anxiety in the classroom.
D) Children's personalities are not affected by the genetics they inherit from their biological parents.