How much of the US population is eligible to donate blood?
D) is correct.
The American Red Cross has eligibility rules to help protect donors and the blood supply. Less than 38 percent of the population is eligible to donate, but there is always a need for blood donations.
The American Red Cross has eligibility rules to help protect donors and the blood supply. Less than 38 percent of the population is eligible to donate, but there is always a need for blood donations.