I think it is (a) because most of the time they are telling a lesson
Answer:
The first one would be 1 + 2 + 3 + 4 +/ 1 + 2 + 3 4/ 1 + 2 3+4/ 1 2 + 3 4+
Explanation:
Hope that helped! :D
A collage contains different pictures regardless of what is formed, while a mosaic is composed of a lot of pictures that form a single picture. -cha