The correct answer is the third one
Answer:
Mark time is basically marching in place (without moving forward). The command is, "Mark time, march." When marching, the command of execution "March," is given as either foot strikes the ground. You take one more 30-inch step with the right (or left) foot.
ignore (SC:GL)
The answer is B.. If u can not talk while exercising it it too intense..you need to be able to do simple things while exercising..
C getting regular medical checkups