The nuclear envelope reassembles during

During cell division,the nuclear envelope reforms at which stage?

Choose the correct option regarding the duplication of organelles during the cell cycle:
$(1)$ Mitochondria and centrioles duplicate during the $(G_0 / G_1 / G_2)$ phase of interphase.

In which phase do the sister chromatids separate?

Match the following and select the correct option:
$List-I$ (Phase) | $List-II$ (Event)
$(A)$ Prophase | $(i)$ Centromere attaches to spindle fibers
$(B)$ Metaphase | $(ii)$ Spindle fibers disappear
$(C)$ Anaphase | $(iii)$ Formation of spindle fibers
$(D)$ Telophase | $(iv)$ Spindle fibers shorten

At the beginning of this stage,the chromosomes that have reached their respective poles decondense and lose their individuality.