which image shows the phase right before cytokinesis?

Brief Explanations:

Cytokinesis is the final step of cell - division. The phase right before cytokinesis in mitosis is telophase. In telophase, the chromosomes have reached the opposite poles of the cell, and the nuclear envelope starts to reform around the separated sets of chromosomes. Among the cell - division phases shown, the one with chromosomes at the poles and the cell starting to constrict or with visible signs of nuclear envelope re - formation is the one right before cytokinesis.

Answer:

The image showing chromosomes at the two poles of the cell and some signs of cell constriction or nuclear envelope re - formation (usually the last phase before the cell physically divides into two daughter cells) is the correct one. Without specific labels on the images, it's not possible to identify by number, but look for the image with chromosomes at opposite ends and early signs of cell separation.