The amount of nicotine contained in a single pack of cigarettes is enough to an adult when consumed quickly enough.
a. kill
b. blind
c. none of the above

I would say C. None of the above.

Explanation: I have been a smoker for years and the most affect I get from smoking too many cigarettes is a nicotine "high" and dizziness. Although I have never smoked a full pack one after another I have smoked quite a few that way. This is personal experience and I may be wrong but I hope the info helps!

i think it can have both positive and negative effects on businesses.

for example:

lets say you own a small business and taxes go up 4% that means it is going to cost your business more money to buy product to sell. but at the same time you make more money from the tax rise.

that is my theory.

counter-terrorism incorporates the practice, military tactics, techniques, and strategy that government, military, law enforcement, business, and intelligence agencies use to combat or prevent terrorism.

basically prevent, pursue, protect, and prepare, google it if you need more info