The correct response is:
An ionic bond is likely because they are metals and will want to bond with nonmetals.
Group 2 elements (alkaline earth metals) typically have two valence electrons, which they can easily lose to achieve a stable electron configuration. When they interact with nonmetals, they tend to form ionic bonds by transferring their valence electrons to the nonmetals, resulting in the formation of positive metal ions (cations) and negative nonmetal ions (anions).