Explanation
- A
I only
I only. That would keep the crustacean line and drop habitat.
- B
I and III
I and III. I fails: it is a spider, not a crustacean.
- C
II only
II only. That drops the arboreal line, which is keyed.
- D
II and III
II and III. Natural habitat in India is a tiny Eastern Ghats forest pocket, and in the wild it is arboreal. It is not an omnivorous crustacean.
Summary. Official Set A key is (d) II and III. The Gooty / Peacock tarantula (Poecilotheria metallica) is a mygalomorph spider of a restricted forest habitat in the Eastern Ghats, and it is arboreal. Statement I is the planted error: crustacean and omnivore are the wrong phylum and diet story. So II and III hold; I does not.
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