In an athletic practice session the coach has four flags to signal his players. The flags are of colours red, green. blue and yellow. These flags are used to signal the athletes to let them know when they should start a new lap. There are five athletes named Daud, Emran, Firoz, Gofur and Hanif. To signal Daud. all four flags are raised. signal Emran, red and green flags are raised. To signal Firoz, only red flag is raised. To signal "Gofur green, blue and yellow flags are raised. To signal Hanif. blue and yellow flags are raised. If red flag is not raised then which of the following athletes islare signaled? I. Emran                   II. Gofur                         III. Hanif