I think it is an idiom but I might be wrong
Im pretty sure that the answer is A
Answer:
Breeds dogs
Wild and domestic dogs
What dogs mostly eat
Way of movement
Average lifespan of a dog
Sizes of dogs
Use of dogs to us
THOSE ARE WHAT I CAN THINK OF
HOPE ITS HELPFUL.
Answer:Reading
Explanation:It is good to read and people need to have good reading book to learn how to read.