SPINY:
A. onerous
B. smooth
C. docile
D. brusque
E. solitary
DIURNAL:
A. itinerant
B. hostile
C. nocturnal
D. callous
E. sprawled
RIVEN:
A. unbiased
B. unbroken
C. dehydrated
D. exposed
E. flexible
CLARIFY : CONFOUND ::
A. categorize : integrate
B. articulate : muddle
C. lope : prance
D. sketch : portray
E. engrave : contaminate