Which of the following statements are the correct explanation of an activity?
A. An activity is a physical, social and mental act.
B. Activity is suitable for primary classes and difficult for higher classes.
C. By activity the syllabus cannot be completed on time.
D. Activity is the process to learn from experience and helps in learning.

Correct option is C

The correct answer is A and D only
An activity is a physical, social, and mental act. This statement highlights that activities involve physical engagement, social interaction, and mental stimulation. They provide opportunities for students to actively participate, collaborate with others, and engage their minds in the learning process.
Activity is the process to learn from experience and helps in learning. This statement emphasizes the importance of activities as a means of experiential learning. Through hands-on experiences and active engagement, students can gain a deeper understanding of concepts, develop critical thinking skills, and apply their knowledge in practical situations.
Thus, it is concluded that A and D only is the correct answer.