Helene sends an instant message to the sender so that he or she knows that the message was received and understood. helene is engaged in

I believe the answer is: Feedback

in communication, feedback refers to the response that we have after receiving a certain message. For the giver of the message,feedback could be used as some sort of confirmation to ensure that the receiver is not confused about the content of the message.

a charter of rights that the rebellion made for king john to approve for basic rights.

michael joseph jackson was an american singer, songwriter, and dancer. dubbed the "king of pop", he is widely regarded as one of the most significant cultural figures of the 20th century and one of the greatest entertainers of all time.

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