It needs atleast 20 minutes a day in order to have an effective cardio exercise.
If you really wanted to have a good cardio exercise that will benefit you and have a good health and healthy lifestyle, then you have to spare your 20 minutes a day.
The letter choice C is correct. Vitamins A, D, E, and K are fat soluble <span />
Fitbits, smart watches and pe'dometers can monitor heart-rate.
