Answer:
Well, you haven't provided me with a sentence to review. I CAN say, however, that of the four answer choices, ONLY ONE of them can be a verb (as well as a noun in some contexts.)
A. dot
Step-by-step explanation:
Don't forget to dot the letter 'i.' [ to mark with a dot ]
Along farm roads in the countryside, cows often dot the landscape. [ spread across an wide area ]
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'Sparkly' is an adjective.
'Night' is a noun.
'Of' is a preposition.