Which of the samples shown below are eukaryotic?

Of the samples shown in the image, options A, B, and D are examples of eukaryotic cells.
Cells can be of two domains:
Eukaryotic cells are described as having nuclei and other internal organelles. The presence of these internal organelles is made possible by internal membranes. This presence of internal membranes is a key feature in classifying eukaryotic cells.
Of the samples shown, D belongs to plant cells, while A corresponds to red blood cells, which are an exception to the rule given that they are eukaryotic cells while not having nuclei. Option C shows single-celled organisms, which corresponds to prokaryotic cells.
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