Option 1 -> There is no indication in the passage that Murugan intended to spy on anyone; he meets the elderly woman for the first time when she opens the door.
Option 2 -> The phrase "any vacancies today?" when arriving at a guest house with a suitcase could potentially refer to job vacancies, though this interpretation is less conventional.
Option 3 -> Murugan was "pleased when Robinson Street proved to be leafy and relatively quiet," and he asks about "vacancies" at the guest house, suggesting he wants to stay there for some quiet time.
Option 4 -> Nothing in the passage suggests Murugan came to explore mysteries; his approach seems straightforward and practical.
Hence, Option 2 and Option 3 -> The word "vacancies" can be interpreted as both employment opportunities and accommodation availability, and the passage explicitly mentions his appreciation for the quiet nature of Robinson Street, indicating he may have been seeking both work and a peaceful place to stay -> correct