Answer:
Let's add the missing piece of information
The stages of the cell cycle in question are
G1 (mitosis)
G2 (mitosis)
Anaphase of mitosis
Anaphase I of meiosis
Late telophase I meiosis/nucleus
Late telophase II meiosis/nucleus
We know from the question that
The round worm Ascaris megalocephala have a diploid complement of 4 chromosomes.
So, we put our answer (which is the attached image) in a tabular form to indicate the number of chromosomes, the number of sister chromatids, the number of DNA strands, and the DNA (or genome) content (as the factor of c) and ploidy (halploid (n) or diploid (2n)) for each stage of the cell cycle
Note,
* the division of the centromere results in chromosomes production from the sister chromatids.
**It indicates the individual DNA strands
