What is the main difference between cardio and strength-training activities?

a- cardio activities increase your physical strength, while strength-training activities work your heart and lungs.

b- cardio activities work your heart and lungs, while strength-training activities strengthen your muscles.

c- cardio activities require short bursts of energy, while strength-training activities strengthen your body over long durations.

d- cardio activities improve your joints' range of motion, while strength-training activities work your heart and lungs.
-if you are not 100% sure don't not answer..
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At 2: 00 am, a 17-year-old boy, accompanied by his 19-year-old girlfriend, had driven to the bar to give his father (who had been drinking large amounts of alcohol) a ride home. on the way back, they were involved in a motor vehicle collision. the boy has a large laceration with profuse bleeding on his forehead. his girlfriend is unconscious in the front passenger floor. the father is standing outside the vehicle, appearing heavily intoxicated, and is refusing care. what is the best way to gain consent to begin care when his father has an altered mental status or is unconscious? a. phone his mother for consent. b. call his grandparents for consent. c. it is a true emergency, so consent is implied. d. you are covered under the good samaritan laws.