16.
A. justify
B. justified
C. justifying
D. having justified
17.
A. diverse
B. divided
C. divine
D. dividual
18.
A. vicinity
B. viability
C. villainy
D. visibility
19.
A. reliance
B. reliability
C. relief
D. relevancy
20.
A. reason
B. reasonableness
C. reasoning
D. reasonability