The strongest type of bond among the options given is covalent bonds. Covalent bonds are formed when two atoms share electrons in order to achieve a stable electron configuration. This sharing of electrons creates a strong bond between the atoms. Hydrogen bonds, on the other hand, are weaker bonds that occur between a hydrogen atom in a polar molecule and an electronegative atom in another molecule. Valence bonds and metallic bonds are not as strong as covalent bonds.
