Answer:
D) Adults do not contract influenza primarily from children who have influenza.
Explanation:
The conclusion from this argument is that there is no health benefit for the nasal spray vaccine since it was designed to be administered to children, but children rarely get influenza.
The only assumption that strengthens this conclusion is that children do not pass influenza to adults.
- If this is true, plus the fact that children rarely get influenza, then why would anyone need an influenza vaccine for children.
- If this assumption was false and children passed influenza to adults, then the conclusion would be wrong because a vaccine would be necessary to prevent children from passing influenza.
Vertical cooperative advertising is usually legal, except when bogus advertising allowances are given in the form of hidden price concessions.
The Answer is D. It would not affect gross income. Gross income is the total amount of income you gain before expenses are taken away.
Answer: b. Is the Chinese food that you gave up when you chose to eat Italian food.
Explanation: Opportunity cost refers to the cost of the next best alternative foregone or sacrificed. When an individual chooses to take a certain action, then his opportunity cost of doing that will be the alternatives that he has foregone.
IT can be expresses as,

When the individual chooses Chinese food when he could have choose to eat Italian food, his opportunity cost will be the Chinese food that you gave up.
For other options there is no information on what was given up.
Answer:
C. subtracting the competitive level producer surplus from the producer surplus associated with less output
Explanation:
A deadweight loss refers to a cost to society created as a result of market inefficiency. Market inefficiency occurs when supply and demand are out of equilibrium. It is also known as excess burden.
Deadweight loss is also created due to taxes as they prevent people from purchasing things that they would otherwise as the final price of the product increases.
The deadweight loss associated with output less than the competitive level can be determined by subtracting the competitive level producer surplus from the producer surplus associated with less output