I would choose C myself.
1. A manufacturer of children toys decided to introduce a new kind of toy that contains cold prevention medicine. The theory is that a child will not get cold while regularly playing with the toy as the toy would be strengthening the child's body against main cold symptoms.
Argument: The toy strengthen child's body against main cold symptoms.
Inference: It will sell good because it is a toy with cold fighting ability.
Which of the following, if true, would lead to the poor sales of the new toy?
Try to think as if you are the head of this toy producer. Which of the following would be the one you fear the most?
a. Children usually spend only 7.5 minutes with any given toy a day.
No matter. If a parent is presented two toys, each would be played 7.5 minutes by a child, the parent is more likely to buy the one with additional benefit. It will sell good.
b. Preventing cold symptoms helps fight cold, but only in children.
This is important, because the toy only prevents symptoms. If that means it helps fighting cold in children, that is very good. We will definitely have good sales.
c. Pharmaceutical industry is about to introduce a new range of cold prevention candy.
A competition to the toy. Same ideas, candy that fights cold, and toy that fights cold. They are substitues. We are not alone with that market nitch any more. If a parent has two choices, the candy and our toy, we don't know she would buy the toy for sure. Definitely gonna hurt our sales.
d. Children's bodies develop quickly, which introduces them to new versions of cold each quarter.
No matter. Our toy fights cold symptons. It is not targeted to a specific version of virus therefore it doesn't matter which version of cold it is. In addition, if the toy is effective this quater, I'm sure the sale will be good this quarter. Just think about the flu shot. The fact that flu virus changes every time does not hurt the sales of the flu shot. In fact it helps it. A lot. Because each new season we need a new shot again.
e. Families that would be able to afford the new toy have central air conditioning installed in their houses.
It's irrelevant. Unless there are documents proving that children live in aire conditioned households don't get cold, which there aren't, having AC doesn't mean parents are not interested in toys that fights cold.
Keep on asking, and it will be given you;
keep on seeking, and you will find;
keep on knocking, and it will be opened to you.