The simplified Boolean expression of the following Karnaugh Map is$?$

Select one:

a$.(Ao+Bo+Co+D)$

b$.(Ao+Bo+Co+D{)}^{\text{'}}$

c$.$ m$0+$m$3+$m$5+$m$6+$m$12+$m$14+$m$9+$m$11$

d$.$ MO$.$M$3.$M$5.$M$6.$M$12.$M$14.$M$9.$M$11$