Load factor and how does velocity affect it?
b) means straight up into a vertical loop with a 300m radius, with the load factor calculated at the 9 o'clock position as velocity is decreasing and G increasing on the up side, 12 o'clock position as velocity and G reach a minimum at the top inverted,  and 3 o'clock position as velocity and G is increasing on the down side, all due to gravity alone.  Bank angle is not a factor and can be considered "level" flight from that perspective. 

a) means the load factor in a 300 m radius level turn, at whatever bank angle is required to achieve that radius at a constant 130 m/s. 

The question should end with "loop and turn" instead of just loop and I would assume the 90, 180, 270 business also applies to the equivalent locations in the level turn in the case of a) (and I would presume to be the same number at each location in the level turn).

The question is pretty poorly done, but that's how I would interpret it to make do with what is presented.  Between the confusion over loop and turn and the typos like "id" for "is", the exam writer needs some remedial training.  So if you get the answer wrong, and it's important, I would protest it if that is feasible.