The best answer would probably be Canada
<span>Ab Roller Evolution is made of metal. It supports neck, head and upper body during workout. It is an upper body trainer: works chest and core. You can do push ups, sit ups, dips. By providing improved support, it reduces stress and strain on body.</span>
<span />Description above is from Amazon.
It is a good idea but has some problems with its design. There is no way to secure it on the floor during exercise. So it moves around when pushed against and would not provide support. A normal crunch will likely work out better.
My estimate is that the answer is C, AED cost.
True, you should eat approximately two cups of vegetables per day.
Although it depends on the person you are and if you work out of not, you will need more or less intake of vegetables, but the lowest you need is two cups a day. For girls, active or not, they need at least 2 1/2 cups of vegetables per day. For guys, active or not, they need at least 3 cups of vegetables per day.
