Answer:
Answer is B.
Explanation:
The main focus is that the dog is being trained.
It's called a metaphor! :)
The Awnser is going to be 15
DDT was initially used by the military in WW II to control malaria, typhus, body lice, and bubonic plague (1). ... DDT was also used in buildings for pest control. • The reason why DDT was so widely used was because it is effective, relatively inexpensive to manufacture, and lasts a long time in the environment