In May 2021, the Union Government has approved how many additional green zone sites for No-permission-No-Takeoff, NPNT compliant drone operations to facilitate, smoothen and promote drone operations in the country?

In May 2021, the Union Government has approved how many additional gre

1.	In May 2021, the Union Government has approved how many additional green zone sites for No-permission-No-Takeoff, NPNT compliant drone operations to facilitate, smoothen and promote drone operations in the country?
A.	142
B.	158
C.	166
D.	174
E.	180
Answer» D. 174