Too...to/ enough/ so...that/ such...that

Choose the one answer (A, B, C, or D) which best fits the space 

The boy is so fat that every calls him Stuffy.
=> ............................................................................

He is so a fat boy that every calls him Stuffy. He is such fat that every calls him Stuffy. He is such a fat boy that every calls him Stuffy. It is so a fat boy that every calls him Stuffy.