O+ (O positive) if you have neither A nor B antigens but you have rhesus antigens.
The correct answer should be loss.
When your skin is cut open, obviously a little blood will run out as a result of that. This case is no different - the person who fell and has an abrasion on the knee will experience a slight loss of blood through that tiny wound which is the result of them falling on the ground.
Answer: The correct answer is b.
Explanation:
