Telophase i

a. is when cytokinesis occurs

b. is whens he pucicar membrane disintegrates

c. is when the spindle fibers disappear

d. is when the chromosomes 'unwind"

The correct assertive is letter A, is when cytokinesis occurs.

Explanation:

Telophase I from Meiosis I is when the chromosomes deconcentrate and consequently the carioteca and nucleolum reappear. Then occurs cytokinesis, which is the division of the cytoplasm originating two daughter cells. These, because they do not have pairs of counterparts, are haploid, and characterize the reditional division.