An example can be hot dogs and hot dog buns. If the price of one of them falls, it would lead to the product being cheaper which would increase sales, thus bringing the demand for the other one to be much higher.
B To show someone's distinct voice.
2nd one
For example, forests help the environment by soaking up carbon dioxide, conserving soil, and preventing flooding.
Answer:
When the large cat repeats the same words 'Better wait till Martin comes' It creates excitement and curosity in the readers mind that who this Martin is? So, the effect that this repetitive words give to the story is that it pushes the story to it's most exciting part.
Explanation: