Regarding Teaching Styles, Which of the Following Statements Is TRUE

Regarding teaching styles, which of the following statements is TRUE?

A) At present, it looks as if a balance of teaching styles goes hand in hand with a balanced education.
B) Direct instruction is somewhat better when learning is measured by tests of abstract thinking, creativity, and problem solving.
C) Discovery learning is slightly better when learning is measured by use of achievement test scores.
D) Direct instruction tends to produce students who are more independent, curious, and positive in their attitudes toward school.