Final answer:
The correct formula for the ionic compound is X2 Y3 (c).
Step-by-step explanation:
The correct formula for the ionic compound that results from these two atoms is X2 Y3 (c).
In this case, 'X' represents the cation with a +2 charge, while 'Y' represents the anion with a -3 charge.
By using the criss-cross method, where the absolute values of the charges are crossed over as subscripts, the formula X2 Y3 is derived.