Answer: A
Explanation: Looking at the working for the previous question you can see that the totals are:
Coil 93 thousand tons
Sheet 113 thousand tons
Therefore the ratio is 113:93 or approximately 11:9
One of the key lessons to learn from answering questions of this type is to write down your intermediate results and working-out. You will often find that you can save time in subsequent questions if you do this.