Andrea and Kamar are inspecting microscope slides. Each slide shows a cell or cells. The students’ task is to identify which stage of the cell cycle each slide shows. Kamar reads, “Squamous cells from human cheek swab.”

“I recognize this one. It's in interphase,” says Andrea, peering into the microscope.

Two round cells each with a nucleus containing many entangled chromosomes

Based on Andrea's observation, what might have been happening in the cells at the time they were collected?

A. Two separate nuclei could have been forming.
B. The cells could have been growing to their full size.
C. The cells' DNA could have been condensing into separate chromosomes.
D. The cell membrane could have been squeezing in around the middle of the cell.