When an Ionic Compound Forms Between Sodium (Na)and Bromine (Br)atoms

When an ionic compound forms between sodium (Na) and bromine (Br) atoms, it is true that

A) a bromine atom donates an electron to a sodium atom.
B) both the bromine atoms and sodium atoms donate electrons to each other.
C) a sodium atom donates an electron to a bromine atom.
D) neither bromine nor sodium atoms donate electrons to each other.