The correct answer is A. historical musicology.
This discipline is also called music history. It studies the development of different musical elements through history. For example, it shows how and when the symphony as a musical form has emerged, and how it has changed over the centuries, in accordance with contemporary cultural and artistic trends. It studies the historical contexts, and it will, for example, answer the question why opera was born in the end of the 16th century, and not earlier or later.
Sarcasm is an ironic or satirical remark tempered by humor. Mainly, people use it to say the opposite of what's true to make someone look or feel foolish. For example, let's say you see someone struggling to open a door and you ask them, "Do you want help?" If they reply by saying, "No thanks. I'm really enjoying the challenge," you'll know they're being sarcastic. Sarcasm is all about the context and tone of voice, which is why it works better verbally. It's something you'll know when you hear it.
John is not Gabriel’s biological son.
To the person that deleted my answer, go ahead and read "The Rockpile" and you will get the same answer.
Being a role model means being an adult figure to others. You have a responsibility if someone looks adores you and want to be like you. Children especially look up to their role model, such as their parents. They have to set a good example for them because the kids have someone that want to be like.