They were loyal to church and nation but they were more loyal to nation
The false statement is the following:
Cultural music is rarely used for celebrating life events.
Let's take for example the song "Happy Birthday" - it's used to celebrate people's birthdays. Similarly weddings are often accompanied by music, so music is actually often used to celebrate life events.
D. To research its historical background and original purpose
This gives you the information and reason behind the work and explains where it comes from
C cost could potentially not be covered even if the game sells very well