The photomicrograph displays plant cells at different points in the mitotic cell cycle. Four cells are marked with numbers so that they can be identified. One of the numbered cells is in the main stage of mitosis where the spindle starts to form. Another numbered cell is in the main stage of mitosis where the spindle fibres shorten. Which row correctly identifies the two cells in these stages of mitosis?
- Astage in which spindle begins to form: 1; stage in which spindle fibres shorten: 2
- Bstage in which spindle begins to form: 2; stage in which spindle fibres shorten: 1
- Cstage in which spindle begins to form: 3; stage in which spindle fibres shorten: 1
- Dstage in which spindle begins to form: 4; stage in which spindle fibres shorten: 2