Final answer:
The correctly transposed pair of sentences is B: Alona says, "I like durian candy." becomes Alona says that she likes durian candy.
Step-by-step explanation:
The pair of sentences that is correctly transposed from direct speech to indirect speech is B: Alona says, "I like durian candy." becomes Alona says that she likes durian candy.
In direct speech, the speaker's exact words are quoted and placed inside quotation marks. In indirect speech, the speaker's words are paraphrased and reported without quotation marks.
In this case, the pronoun "I" in the direct speech ("I like durian candy") changes to "she" in the indirect speech ("she likes durian candy") to reflect the change in perspective from the speaker to the reported speaker.
Learn more about Direct and indirect speech