As per the study report of International Food Policy Research Institute, unveiled on 4 March 2019, air pollution due to crop stubble burning in northern India causes an economic loss of $________ billion annually.

As per the study report of International Food Policy Research Institut

1.	As per the study report of International Food Policy Research Institute, unveiled on 4 March 2019, air pollution due to crop stubble burning in northern India causes an economic loss of $________ billion annually.
A.	20
B.	30
C.	40
D.	50
E.	60
Answer» C. 40