At anaphase stage of mitosis in plant cells, interzonal of the spindle fibres gets transformed into

The correct answer is C. Phragmoplast.

At anaphase stage of mitosis in plant cells, the interzonal of the spindle fibres gets transformed into a phragmoplast. The phragmoplast is a structure that forms between the two daughter nuclei during cell division. It is composed of microtubules and vesicles that come from the Golgi apparatus. The phragmoplast helps to organize the cell plate, which is a new cell membrane that forms between the two daughter nuclei. The cell plate eventually grows and develops into a new cell wall.

The other options are incorrect.

• Equatorial plate: The equatorial plate is a structure that forms in the middle of the cell during mitosis. It is where the chromosomes line up during metaphase.
• Nucleoplast: The nucleoplast is a small, round structure that is found in the nucleus of some cells. It is composed of DNA and proteins.
• Chloroplast: Chloroplasts are organelles that are found in plant cells. They are responsible for photosynthesis.