Please help!

Ben invested $1,500 fifteen years ago with an insurance company that has paid him 4 percent simple interest on his funds. Charles invested $5,000 twenty years ago in a fund that has paid him 4 percent interest, compounded annually. How much more interest has Charles earned than Ben over the past 15 years? Multiple Choice O $0 O $1,004.72 $7,109.16 O $6,827.04 O $8,266.49