The correct answer is the fourth option - endurance. Endurance refers to the amount of time that a muscle can produce power, and 'endure' the action. Strength is how strong a muscle is, and ratio is how to separate/ration power.
Abstinence means to avoid or not want to do something. It is preferred that high school children under the age of 18 restrain from sexual activity. (Hope this helps if it did pls mark brainliest!)
