A stationary 90 kg baseball pitcher throws a 0.15 kg baseball forward
at 40 m/s. What is the linear momentum of the baseball?
Select one:
0.0038 kg . m/s
3600 kg. m/s
267 kg . m/s
6 kg. m/s

Did you ever figue this

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