Which of the following least justifies the use of open - ended tasks in mathematics ?

Correct option is C

Open-ended tasks in mathematics are tasks that do not have a single correct answer. This can make them time-consuming to solve, and they may not be appropriate for homework assignments. Students need time to think creatively and explore different approaches to solve open-ended problems. Homework is often used to reinforce concepts that have been taught in class, and open-ended tasks may not be the best way to do this.