Ilia Tapturo will not be getting past Paddy "The Baddy©" Pimblett

I need one more course for my masters in applied math from one of the following:
>complex fluids
>advanced perturbation methods
>FE methods for PDEs
>Industrial mathetical modelling
>green's functions and the calculus of variations
My supervisor said I can take any, so which one should I take. My research is on low Reynolds number flows of non Newtonian fluids, if that helps.

Also before anyone says, I already asked /sci/ but it's a dead nigger baby of a board.