Tanks and submarines were easily simulated, since looking through goggles wasn’t very much different from looking through a pair of binoculars or a periscope. Since the first head-mounted display was built for the Pentagon in 1968, primitive versions of virtual reality have since proliferated to video arcades around the country.

What is the moral cf this fable? a. you should play now and worry about provisions later. you should work hard now so someone will you later. you should work hard and save now so you will have something to show for later. you should play hard and work hard now, so you will enjoy life and still have provisions. select the best answer from the choices provided