A ball shot at an angle of 60 degree to the ground strikes a building 23m away at a point 16m high. find the magnitude and direction of the final velocity of the ball as it strikes the wall

3is a crest4 is a trough 2 is the amplitude 1 is the wavelength

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