1. I'm not sure which of these but I think either A or C
2. A
3. D?
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:
The answer is D) they contain writing made of symbols!
The brain stem it is called