B - 24 
Haploid cells have only one set of chromosomes while diploid cells have two
 
        
             
        
        
        
When the cells undergo late apoptosis, the membrane structure is destroyed and the nuclear structure can be selectively visualized by Hoechst 33342/PI.
https://www.creative-bioarray.com/support/double-staining-apoptosis-assay-hoechst33342-pi.htm
 
        
             
        
        
        
it's b. anaphase and spindle fibres pulls chromosomes towards the centrioles in this phase.
 
        
                    
             
        
        
        
Using reasoning evidence or research evidence? So I can help