Using the image below, identify which of the statements is true.

A. In part A the cell is 2n, and in part B the cell is 4n.

B. All of the above are true.

C. Part A in the image is the chromosome before S phase of Interphase, and part B is after DNA replication has occurred.

D. The image shows a homologous pair chromosome 4 in part A, and sister chromatids in part B.