THE ANSWER FOR UR QUESTION IS
B,C AND D CAN BE EASILY FOUND IN PAPER DICTIONARIES
BUT FOR A IT IS NOT REALLY THAT USEFUL COMPARED TO B ....
HOPE THIS HELP U ALOT ...
^_^
did you mean main idea?
the main idea is the central, or most important, idea in a paragraph or passage.
It is the best superpower because it gives you the power to fix mistakes and prevent any other catastrophes happen
Answer:
to show the reader how music formats have changed over time is the correct answer.
Explanation: