Ions and ionic bonds — practice question

Chemical compounds made from a Group I element and a Group VII element have ionic bonds. In what way are the ionic bonds formed?

• AElectrons are transferred from Group VII atoms to Group I atoms.
• BElectrons are shared between Group I atoms and Group VII atoms.
• CElectrons are lost by Group I atoms and Group VII atoms.
• DElectrons are transferred from Group I atoms to Group VII atoms.