Argument Structure:Master plan allows:
Native trees — EXCEPT those that
grow very large (like cottonwood)
Evidence: Donated trees came from Three Rivers Nursery, which sells
mostly native trees
Conclusion: Donated trees are
probably consistent with the plan
The Gap:To be "consistent with the plan," donated trees must be:
Native ✓ (Nursery sells "mostly native" — covered)
NOT large-growing ✗
(No information about this!)Prethink: We need to know the nursery
doesn't sell large-growing trees.
Answer Choice Analysis:A. Some tree species that grow to be very large are consistent with the master plan.
The passage says large native trees are
excluded. This contradicts the passage and doesn't address what the nursery sells.
Eliminate.B. Three Rivers Nursery sells cottonwood trees
Trap — this WEAKENS! Cottonwoods are specifically mentioned as excluded large trees. If the nursery sells them, donated trees might be cottonwoods!
Eliminate.C. Many of the native species that Three Rivers Nursery sells are shrubs, not trees.
The donated items are
trees, not shrubs. This tells us nothing about whether the trees sold are large or small.
Doesn't address the gap. Eliminate.D. Tree species that are not native to this area and that are consistent with the master plan are rare and hard to find.
The plan only allows
native trees. Non-native trees aren't consistent with the plan anyway.
Out of scope. Eliminate.E. Three Rivers Nursery does not sell any tree species that grow to be very large.
Directly closes the gap!Plan excludes: Large-growing trees
Nursery doesn't sell: Large-growing trees
Therefore: Donated trees
cannot be large-growing
Combined with "mostly native," donated trees are now:
✓ Probably native
✓ Definitely not large-growing
Both requirements satisfied. CORRECT.Answer: (E)