Which Statement Is Correct About How Carbon Dioxide Is Carried

Multiple Choice

Which statement is correct about how carbon dioxide is carried in the bloodstream?

A) Carbon dioxide enters the bloodstream from the tissues.It then combines with hemoglobin to form carbaminohemoglobin but most of it is carried in the form of bicarbonate.
B) Carbon dioxide enters the bloodstream from the atmosphere.It then combines with hemoglobin to form carbaminohemoglobin but most of it is carried in the form of bicarbonate.
C) Carbon dioxide enters the bloodstream from the tissues.It then combines with hydrogen ions to form bicarbonate ion but most of it is carried in the form of carbaminohemoglobin.
D) Carbon dioxide enters the bloodstream from the tissues.It then combines with hemoglobin to form bicarbonate ion but most of it is carried in the form of carbaminohemoglobin in the bloodstream.
E) Carbon dioxide enters the bloodstream from the atmosphere.It then combines with water to form carbonic acid but most of it is carried in the form of bicarbonate.