Answer:
A
Explanation:
A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.
C, hydrogen bonds , i did this test last year and im in chemistry now, so its hydrogen bonds.
Answer:
Read the Quran. it tells you how did it begin