The answer would be: D-100. The reasoning of this is because if you take 3 X 10 to the third power and did the exponent (10 to the third power in this case) and multiplied it you would obviously get 1,000 for an answer. Then would would do 1,000 X 3 to get 3,000.
Your mom smells like poop
Just multiply the with and the length by four (considering the scale factor is 4)
3x4=12 and 7x4=28