You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: NERDS RULE! 
Clue: Mick Jagger was a finance student at the London School of Economics before cashing in with this band
the rolling stones

Category: -OLOGIES 
Clue: Seismology studies the seismic waves produced by these plate shifts
earthquakes

Category: TO THE "LEFT" HAND SIDE 
Clue: Artsy southern section of Paris

the left bank