Three of the Following Examples Reflect the Use of Metacognition

Three of the following examples reflect the use of metacognition in problem solving. Which one shows little or no metacognition?

A) When Allan discovers that his homework assignment in social studies involves an especially ill-defined and difficult problem, he realizes that he will have to devote a considerable amount of time to the assignment.
B) Brendan is replacing an old, single-paned window in his home with a new, double-paned window unit. Before he begins to work, he thinks about the steps he will need to take and jots down the tools and materials he will need to purchase.
C) Clyde is working on a series of word problems after a unit on multiplication of two-digit numbers. To complete the task as quickly as possible, he simply multiplies the two numbers he sees in each problem; he doesn't bother to read the problems themselves.
D) When Duncan's chemistry teacher assigns a challenging problem that she wants her students to address in chemistry lab, Duncan feels confident that he has both the knowledge and skills to solve the problem successfully if he works slowly and carefully.