Knowing that "A" stands for Amperes, we know that A would be the current. Knowing you can't make the sign "Ω" for the next number which is 24 I'm guessing that it would be standing for resistance. The equation for this problem would be V = I · R. Now knowing the equation we can see that we multiply current · resistance to get voltage. The answer to this problem is "c" or the third option.