Answer:
ionic
Step-by-step explanation:
metallic bonds are only formed between two metals
nonmetallic bonds are only formed between two nonmetals
ionic bonds are formed between to oppositely charged elements (metals and nonmetals)
nonpolar bonds are related to electronegativity and you will not have a nonpolar ionic bond (only nonpolar covalent bond)
covalent bond (two cations or two anions partnered)