Michelle Martelle, CEO of Michelle Enterprises, has five projects in hand and is considering which, if any, to undertake. Their expected returns are: project A $=12$ percent, project B $=7$ percent, project C $=10$ percent, project D $=9$ percent, and project E $=8$ percent. If the interest rate is $8\mathrm{.}5$ percent, which, if any, investment projects will she accept?

Only project A$.$

Projects A and C$.$

Projects A$,$ C and D$.$

Projects A$,$ C$,$ D and E$.$

Projects A$,$ B$,$ C$,$ D and E$.$