You need to give context to this question..... or a picture.....
I'll say C, Science cannot answer difficult question...let me know.
An ionic bond results in an exchange or transfer of electrons between the 2 different types of atoms, most likely the metal atom and nonmetal one.
For example the compound NaF is held together by electrostatic forces of positive and negative charges due to the transfer of electrons from the sodium to fluoride atom.
Each parent give you 23 chromosomes