Final answer:
The sentence that best supports the idea that Miss Emily was in love with Homer is the one where she orders a man's toilet set with his initials.
Step-by-step explanation:
The sentence that best supports the idea that Miss Emily was in love with Homer is:
"...Miss Emily had been to the jeweler's and ordered a man's toilet set, in silver, with the letters H.B."
This sentence indicates Miss Emily's affection towards Homer, as she specifically orders a gift for him.
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