In the Research by Blackwell, Trzeniewski, and Dweck Described in the Text

In the research by Blackwell, Trzeniewski, and Dweck described in the text, researchers created an educational program for low-income middle school students. The children who showed the most substantial improvement in math grades were those children who initially believed that intelligence _____ and who were provided with information about how _____.

A) is an unchanging quantity; memory works
B) is an unchanging quantity; learning alters the brain
C) improves through learning; memory works
D) improves through learning; learning alters the brain