Seawater Taken from an Area with a Large, Growing Plant

Seawater taken from an area with a large, growing plant population has a ________.

A) low CO₂ and high nutrient content
B) low O₂ and low nutrient content
C) high O₂ and low nutrient content
D) high O₂ and high CO₂ content
E) None of these is correct.