Answer:
b. covalent bonds are weaker than ionic bonds
Step-by-step explanation:
Covalent bonds are formed when valence electrons are shared between two participating ions.
Ionic bonds are formed when electrons are transferred from a donor ion to an acceptor element during a reaction involving the two. This results in one ion being negatively charged and the other being positively charged
The opposing force between the two ions in ionic bonds creates a coulombic force which holds together and makes ionic bonds stronger than covalent bonds.
Hence, the correct option is b.