The correct response is:
An ionic bond is likely because they are metals and will want to bond with nonmetals.
Group 2 elements, also known as alkaline earth metals, have two valence electrons. They typically tend to lose these two electrons to achieve a stable electron configuration similar to that of noble gases. This tendency leads to the formation of cations (positively charged ions). When these metals react, they often bond with nonmetals, which can accept electrons to form anions (negatively charged ions), resulting in ionic bonds.