Which need for food is based on the body need for nutrient

Which of these contraceptive methods would be most beneficial for a female who wishes to avoid side effects or surgery?

Asubstitute is standing at the halfway line waiting to enter the match at the next stoppage of play the ball has gone over the touchline for throwing and referee allows for the substitution to substitute wants to take the throw-in does the substitute first have to enter the field of play before being allowed to take the throw-in

Which of these activities would better would maintain and improve muscle endurance