An "eggstronaut" is dropped from 45 meters. Calculate the time it takes for the eggstronaut to land if no parachute is used and it simply falls at the acceleration due to
gravity.

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

Simple, don't do it. just don't go to that dock