my professor explained this exercise today in class and i dont understand how he got that answer, can somebody explained it to me, please. how he got the 411.00 ????

20) Beatrice invests $1,370 in an account that pays 5 percent simple interest. How much more could she have zetned over a 6 -year period if the interest had been compounded annually? A) $329.59 B) $32.51 C) $54.93 D) $39.01 E) $22.64 C) 54.93