Answer:
volume = 0.285 L
Explanation:
Henry constant is given as

Where C is concentration
P is atmospheric pressure

when atmospheric pressure 4 atm


In 5 litere blood , moles of N_2 

At surface moles 
Moles of N_2 release = 0.014 - 0.0028 = 0.0112
Mass of 
T = 37 + 273 = 310 K


volume = 0.285 L
I think you are right. B is the right answer.
OK like most things chlorophyll is found in the chloroplasts of green algae