D, because it's written by professionals from professionals
C, Smoke companies will say its ok because they want more people to smoke
B, The asthma person can be totally biased because it's an easy topic to persuade people on.
A, Air purifiers are good but they just want you to buy their products.
D. British soldiers forced native Americans onto reservations
C is the correct because it has good capitalization has a period at the end not like letter D
1. Appropriate 2. Inappropriate, seek help immediately 3. Inappropriate, seek help immediately 4. Appropriate