Which of the following statements is true of the graph above? A. An object is standing still at a distance of 6 meters from the origin

B. An object is standing still on the origin

C. An object is moving at a constant speed of 6 m/s away from the origin

D. An object is moving at a variable speed away from the origin

Is this a question of an answer

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