A pine tree has recently seen a large amount of growth. A scientist looks at some of the cells under a microscope and notices that the cells are in different stages of the cell cycle, one cell appears to have finished the division stage, but has not fully completed the final phase of the cycle. Which of the following structures below best describes the part of the cell cycle the scientist sees, just before the conclusion of the cell cycle of a pine tree?
A. Cleavage furrow
B. Nuclear membrane
C. Centromere
D. Cell plate