Explanation:
I think that every answer from your question is correct because the player who will do the serve can stand anywhere to serve the ball but the most important thing is that he should stand behind the end line. Your answers here are referring to that every service is done from the back and that is why I think those are all correct answers.
I hope that this information will help you to recognize the correct answer.
Incorrect posture and body movement can cause strains to <u>m</u><u>u</u><u>s</u><u>c</u><u>l</u><u>e</u><u>s</u> or joints.
<span>Wash your hands. Do it frequently and especially
after using the toilet, changing a diaper or petting an animal and
before handling or eating food.
</span>
