Sports or some sort of laws
Answer:
C. Sender
Explanation:
When you <em>send </em>a message, you're the <em>sender </em>of that message.
A caller is the person who makes a call, a receiver is the person receiving the message and or call, while the messenger is the person who wants to send a <em>certain</em> message, to a <em>certain </em>person.
yes they do lead up to the summation or conclusion presented in the last verse