Answer:
Holmes is suspicious of Spaulding.
Step-by-step explanation:
The story of The Red-Headed League by Arthur Conan Doyle from his Sherlock Holmes series revolves around the case of the bank robbery that Mr. Spaulding and his accomplice had planned. The robbery was thwarted, as usual, by Holmes and Watson.
In the given passage, Holmes is inquiring about this assistant of Mr. Wilson, Vincent Spaulding. Wilson agrees that there is no issue with the man except that he loves taking pictures and immediately goes to the cellar now and then. Holmes’s interest in the assistant suggests that he seems to be suspicious of him and his actions.
Thus, the correct answer is the first option.