Concept:Formal education exposes people to new ideas, values, and ways of life, which speeds up cultural change.
Explanation:Formal education teaches scientific, global, and modern ideas that may differ from traditional customs.
It encourages people to adopt new behaviours, attitudes, and lifestyles.
Through schools, people learn other cultures and gradually change their own cultural practices.
This makes formal education a major cause of rapid cultural change in Ghana.
Answer:A. formal education.