Final answer:
Rhoda is described as being exceptionally neat, as she never gets anything dirty.
Step-by-step explanation:
Based on the information provided, Rhoda is described as someone who is exceptionally neat and tidy. The statement 'Rhoda never gets anything dirty,' suggests that Rhoda maintains cleanliness to a very high standard, and the speaker expresses admiration for Rhoda's ability to keep things clean without knowing exactly how she manages it. Therefore, the correct answer to how Rhoda is described regarding keeping things clean is c) She's exceptionally neat.