Rodney’s mass is 84.0 kg , and he is standing on a bathroom scale in an elevator starting from rest the elevator accelerates upward at 2.25 m/s^2 for 3.01 s and then continues at a constant speed , is scale reading during acceleration greater than , equal to or less than the scale reading when the elevator is at rest ?

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