In Theide and Anderson's Study on Metacomprehension in Undergraduates, What

In Theide and Anderson's study on metacomprehension in undergraduates, what was the relationship between metacomprehension and performance for students writing summaries and the control group?

A) Only students in the delayed summary group were able to judge their comprehension accurately.
B) None of the groups were accurate at judging their comprehension.
C) There was a positive correlation between comprehension and performance for the two summary groups but not for the control group.
D) There was a positive correlation between comprehension and performance for all groups but the relationship was much weaker for the immediate summary and control groups.