Medications often
a. are sold over the counter.
b. include vitamins, diet pills, and others.
c. are not regulated until after a negative health effect is proven.
d. do not require evidence that they work, as long as they state that the fda has not evaluated them.

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