Jeanette Needs $15,000 as a Down Payment for a House

Jeanette needs $15,000 as a down payment for a house six years from now. She earns 3.5% on her savings. Jeanette can either deposit one lump sum today for this purpose or she can wait a year
And deposit a lump sum. How much additional money must Jeanette deposit if she waits for one
Year rather than making the deposit today?

A) $121.03
B) $166.67
C) $307.00
D) $333.33
E) $427.09