Will the reaction shift left or right?

[![Here is the problem I got wrong](https://i.stack.imgur.com/UJg0W.png)](https://i.stack.imgur.com/UJg0W.png)


The picture shows the correct answer.


At Eq., I have:


* 3 Mol of A
* 1 Mol of B
* 12 Mol of C


I was looking at each answer in terms of ratio of reactants to products, but its clearly not correct since I got 0.4/2.0. How should I think when approaching this problem?


