What is true about RBCs in humans?

Options

A. They transport about 80 percent oxygen only and the rest, 20 per cent of it is transport in dissolved state in blood plasma
B. They do not carry `CO_2` at all
C. They carry about 20-25 percent of `CO_2`
D. They do not carry `CO_2` at all They carry about 20-25 per cent of `CO_2` They transport 99.5 percent of `O_2`

Answer

C