As the difference in electronegativity between two atoms decreases, the tendency for the formation of covalent bonds

As the difference in electronegativity between two atoms decreases, the tendency for the formation of covalent bonds "increases"

Explanation:

Electronegativity being a chemical property which tells us about the tendency about the atom in order to fascinate the shared pair of the electron towards itself. It is being pretentious by atomic number and the distance as well, by the help of which the valence electrons resides from the charged nucleus. In the scale Pauling scale is used. Being the most electronegative element fluorine is counted. The more the electronegativity, the more electrons will fascinate towards itself.

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i'm pretty sure it is letter c.) car