What does the data mean? * The car and the truck have different masses and velocities.
The car and the truck's momenta are determined by different masses and velocities that equal the same product when multiplied together. Masses and velocities don't have to be the same to get the same momentum.
The car and truck have the same momentum.
The car and the truck have a different momentum.

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Ireally don’t know

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