Considering the usage of two separate sections for heat generation and crude cracking provides advantage on which process?

Air can be used instead of oxygen

No need of any air or oxygen supply

Considering the usage of two separate sections for heat generation and

1.	Considering the usage of two separate sections for heat generation and crude cracking provides advantage on which process?
A.	Air can be used instead of oxygen
B.	More oxygen can be utilized
C.	No need of any air or oxygen supply
D.	None of the mentioned
Answer» B. More oxygen can be utilized