Concept:Reported speech changes the tense and adjusts time and place words to match the new context.
Explanation:The sentence refers to someone reporting a past statement after the reporting verb “said.”
In direct speech, the speaker may have said: “I ate here yesterday.”
When this is reported later, the simple past tense “ate” shifts one step back to the past perfect form “had eaten.”
The place word “here” must become “there” because we are reporting from a different location.
The time expression “yesterday” must become “the previous day” because “yesterday” is not accurate from the new time perspective.
Option A, “had eaten there the previous day,” contains all these necessary changes together.
Options B and C fail to shift the tense correctly, while option D keeps “yesterday” instead of using “the previous day.”
Therefore, the most accurate completion of the reported sentence is option A.
Answer:A. had eaten there the previous day.