How is interest income taxed in LLC?

[Matthew Gray]

I have a unique question I'm getting conflicting answers on. I made a real estate investment in my single member LLC in 2018 and was issued a 1099-INT. I did not receive any other income within that LLC in 2018. I assumed that this would go on my personal return under Schedule-B like any other interest income. I'm now being told it may be Schedule C since it was within the LLC.

-If it were to go on my Schedule B, do I not submit a schedule C for the LLC?