The correct answer is...
D, 2N, 10C. The metaphase is AFTER the S phase, which means that DNA replication has occurred. DNA replication DOUBLE the DNA content in the cell, which means that the C content has to double. Thus, the overall C content must be 10C. Thus, you are are to A, D, and E as potentially answers. Furthermore, duplicating the chromosomes, has NO effect on the N value because the SETS of chromosomes still stays the same. Thus, you still stay at 2N, which makes D the right answer.
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