Concept:Extension education is a type of learning that happens outside the formal school system.
Explanation:It is non-formal education designed for adults and community members.
It covers practical topics like agriculture, health, and family planning.
It is delivered through workshops, seminars, and demonstrations.
Extension education does not follow a structured school curriculum.
It is not formal education, nor is it unplanned informal learning.
Thus, it is best described as out-of-school education.
Answer:C. Out-of-school education