In which clef would this note be named Middle C?
treble clef
grand staff
bass clef
none of the above

Answer:
Notice that "middle C" is on the first ledger line below the treble clef (stave) and is also on the first ledger line at the top of the bass clef (stave). These are the same note. It's called "middle C" because it is in the middle of the piano.
Explanation: