(BRAINLIEST AND A THANKS) Which of the following correctly combines the two sentences?

I have so much homework.
I still have to learn this piece of music.


A. I have so much homework, although I still have to learn this piece of music.

B. I have so much homework, and I still have to learn this piece of music.

C. I have so much homework so I still have to learn this piece of music.

D. I have so much homework yet I still have to learn this piece of music.