How are red blood cells and neurons different

Red blood cells carry a specific type of protein, called hemoglobin, which is able to bind oxygen and release it in other tissues. A nerve cell doesn't have this protein because it doesn't need to bind oxygen. Instead, the nerve cell uses other proteins that help it transmit signals to other cells.

Explanation:

blood cells have a short life span of about 2-3 months where as neurons have a longer life span almost same as the human life. Unlike stem cells, normal cells (blood cells) are found everywhere and the shape is also different. Although every stem cell has a nucleus normal cells like red blood cells do not contain a nucleus.

Explanation:

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the correct option is option d