Questão
CFS - BCT
2019
Adapted-from-ttps413c1c2baf


Adapted from: ttps://collegegrad.com/careers/air-traffic-controllers

Consider this excerpt from the text:

“They work at air route traffic control centers located throughout the country, which typically are not located at airports.” (lines 19, 20 and 21) 

All the following sentences about the underlined word are correct, except:
A
The underlined word is a relative pronoun. 
B
The word “which” introduces a defining relative clause. 
C
The word “which” refers to “air route traffic control centers”. 
D
“Which typically are not located at airports” is a non-defining relative clause.