~intervention->extinct (the contrapositive of this is ~extinct -> intervention
Forests preserved->~extinct (bc supply of of fav fruits/ insects) (contrapositive extinct ->~preserved)
A. We only know the forest provides these - argument did not say whether this is the "only" habitat to do this
B. Again, this would be true if the the forest were the only way to preserve the monkeys
C. This would be true if the stimulus said, "they will survive only if large tracts of second growth..."
D. Illegal negation
E. If you link the conditionals you get ~intervention -> extinct ->~preserved which is what this answer is saying