Answer:
A chemical bond occurs as a result of electrostatic interaction between the nuclei and the electrons of the joining atoms. ... Simultaneously, a repulsion arises between the two positively charged nuclei and the same occurs with the electrons of the two negatively charged atoms.
Explanation:
p o n l o e n e l t r a d u c t o r
The principle is called CEPHALOCAUDAL PRINCIPLE.
This principle proposed that growth follow a particular pattern in which the head and the upper part of the body grow first before the growth proceeds to other part of the body.
The answer to your question would be letter D
