What is the relationship between the number of chromosomes in sperm/egg cells compared to regular cells? 
 A: sperm/egg cells and regular cells have the same number of chromosomes 
 B:sperm/egg cells have the twice the number of chromosomes as regular cells
 C:sperm/egg cells have the half the number of chromosomes as regular cells
 D:sperm/egg cells have the triple the number of chromosomes as regular cells