'teak surfing' is strongly discouraged in the state of florida, what is one of the main safety concerns involving this activity?

a)excess fuel expenditure
b)carbon monoxide exposure
c)vessel swamping
d)damage to underwater vegetation

Explanation:

Teak surfing is played holding to an exterior portion of a boat, specifically the transom of a vessel, and being pulled by it. As you can see in the image attached, holding this position is dangerous because you are exposed to gas emissions, which will slowly damage your system.