Element X and fluorine react to form two different compounds. In the first reaction 0.480g of X reacts with 1.000g of F. In the second, 0.960g of X reacts with 1.000g of F. What are the possible formulas for the two compounds?

(Multiple choice)
a. XF (for 1st compound) X2F2 (for 2nd)
b.XF2 XF
c.XF2 X2F
d.X2F XF2
e.X2f3 X3F

The second compound has twice the moles of X compared to as the F, Answer b appears to be only answer that meets the criteria. Check my thinking