Question

Which among the following letters does not denote a blood type in humans?
1. B
2. O
3. A
4. C​

Answer 1

The correct option is 4) C.

Explanation:

• C does not denote a blood type in humans.
• The human blood type system is represented by the ABO system.
• A person can either b A positive, A negative, B positive, B negative, O positive , O negative, AB Positive, AB negative.
• C does not dome under any system under which the blood type of humans  is classified.
• Hence, the letter that does not denote a blood type in humans will be C.

Answer 2

the correct answer is C

hope this will help you