A student is examining an onion root tip cell under a microscope. Based on her observations, the student proposes that the onion root tip cell has completed interphase and is now in the first phase of mitosis. Which of the following pieces of evidence would best support the student’s claim?
Choose 1
Choose 1

(Choice A)
A
The cell’s DNA is dispersed within the nucleus as chromatin.

(Choice B)
B
Separated sister chromatids are being pulled towards opposite ends of the cell.

(Choice C)
C
The cell’s chromosomes are aligned across the metaphase plate.

(Choice D)
D
Discrete chromosomes are scattered throughout the cell’s nucleus.