Using the force is applied to the system, determine the mechanical advantage of the pulley. Diagram shown below. a) 0.5
b) 2.0
c) 50
d) 100

50 meters per 5 seconds

Definitely the indoraptor

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

True will be your answer dude