Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: Some arthropods have special excretory structures. An ant and a lobster are both arthropods. Lobsters have special excretory structures.
 The question and answer:
Lobsters have special structures for:
Options:
- (A) excretion
- (B) Cooking
- (C) produce light
- (D) staying warm
- (E) butter
- (F) Maine
- (G) layers of fat
- (H) tastiness
The answer is (A)