A. osteocyte
B. neurone
C. erythrocyte
D. leucocyte

Correct Answer:

Option C – erythrocyte

Explanation

Red blood cells are microscopic and have the shape of a flat disk or doughnut, which is round with an indentation in the center, but it isn’t hollow.

Red blood cells don’t have a nucleus like white blood cells, allowing them to change shape and move throughout your body easier.

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