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.
Answer:
To answer this question, you need to find a story that fits with that sentence. For that, you need to give your story a time and place, include characters, and make the story entertaining and make sense.
Explanation:
Once when I was walking along the beach with my best friend, we came across a lot of people gathered around a man. People were very effusive so we decided to go see what happened.
When we got closer we could see a man who was holding a contest, who was encouraged to eat a live fish, he would win a whole day on a private yacht.
The yacht was in the port and it was really luxurious, it looked like a famous person.
Obviously nobody dared to do it because it was something impressive and something disgusting. And since no one was encouraged, we should try before someone comes along and does it before us.
My friend was very hesitant but I finally convinced her and we did.
We did not know how to start and the truth is that it was very impressive, but in the end it was a lot of fun and everyone applauded us. But the best of all was that we were able to spend the day on that beautiful yacht.
If we hadn't taken a chance before someone else arrived, I couldn't be telling this story today. I owe all this adventure to the saying that my mother always says: strike while the iron is hot.
Answer:
B. If you come here when the moon is full, the legend goes you can see the ghost of an old sailor walking along the shore.
Explanation:
B is the correct answer, because the comma is basically directly there to add a pause to the sentence, between the cause and the effect.
I would definitely say B.) A smile because if you were just staring it may be rude or distracting to the speaker and a smile shows you are listening and absorbing the knowledge