For number one I would say B because :
The length of the red triangle Is :
3
The Height of the red triangle Is:
2
You need to put this in a ratio, but still in the correct order.
For number two, Id Say C Because:
They Both Run on the same line.
The rules with slopes are that no matter how big or small the triangle is, if it is runing on the same line, the slopes are equivalent.