Which statement comparing ionic and covalent bonds is correct?

a
Elements in Group 1A are more likely to form covalent bonds than ionic bonds with other atoms.
b
More electrons are transferred from covalent bonds than ionic bonds.
c
Covalent bonds tend to be less polar than ionic bonds.
d
The difference between electronegativities is greater in covalent bonds than for atoms in ionic bonds.

c

Covalent bonds tend to be less polar than ionic bonds.