In 1979 an extensive()program was in progress throughout Suez Canal.
The goals of the scientists, whose training had afforded them extensive experience with cutting-edge methodologies,
A B
were to change the genetic components of the virus and creating a new set of criteria for analyzing the results.
C D
No error
E
The world’s most extensive research effort on climate change is now regulated by the U.S. Global Change Research Program.____