Answer:
<u><em>Tenuto: Hold the note in question its full length (or longer, with slight rubato), or play the note slightly louder.</em></u>
<u><em>Staccato: Signifies a note of shortened duration or detached (not legato)</em></u>
<u><em>Legato: Indicates musical notes are to be played or sung smoothly and connected.</em></u>
Explanation:
A. True
Shaw did believe that all art should have some kind of 'message' but he wouldn't have necessarily called it a 'moral message'