calculate the height in m of a cliff if it takes 2.25 s for a rock to hit the ground when it is thrown straight up from the cliff with the initial velocity of 8.17 m/s.

What do you mean there’s no jelly beans

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