The answer is all of the above.
What is sickle-cell trait?
Red blood cells with sickle cell disease are bent rather than spherical because it is an inherited blood ailment. Small blood vessels are blocked by these curved red blood cells. Organ damage and suffering may result from improper blood flow.
Option e (all of the above) is the correct choice.
To learn more about sickle-cell trait, click on the link below –
brainly.com/question/13291966
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The hilum serves as the passageway for nerves and vessels
I think the letter is (D)
