In constant choke carburetor or open choke carburetor ___________ is kept constant.

In constant choke carburetor or open choke carburetor ___________ is k

1.	In constant choke carburetor or open choke carburetor ___________ is kept constant.
A.	air flow area
B.	fuel flow area
C.	both air and fuel flow areas
D.	pressure drop
Answer» D. pressure drop