Answer:
NAVY SEALs require more training to build up their skills in the water. I think the most difficult part of their training would be the swimming part because of the SEALs that swim in floodwaters to rescue people, so they have to know the fastest and most effective way to tread water.
The dual components of addiction that can make recovery difficult are C. physical and psychological.
Answer: Government should tax goods with positive externalities and subsidize goods with negative externalities
Explanation: Negative externalities occurs when a third party suffers an extra cost in the purchase of goods and services. When Government subsidize goods with negative externalities, they become more affordable for the third party. Viz a Viz for the positive externalities.
Taxing the positive externalities will create a balance and regulate price of goods and services
I would put C but I may be wrong