Question

1. Holmes realizes Spaulding has a hidden reason for working for Mr Wilson when he
(a) sees the knees of his trousers were dirty
(b) hears Spaulding is working at half the wages. .
(c) is told Spaulding is an amateur photographer.
(d) comes to know of the Red-headed League
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Answer 1

Explanation:

hears Spaulding is working at half the wages