Read the following passage carefully:
Before securing the official permit to excavate the subterranean granary at Alaca Höyük in 1988, Dr. Aris Thorne had spent two years analyzing satellite imagery at his university lab. It was during that initial imaging analysis, conducted in 1986, that he first identified the anomalous soil density patterns indicating buried structures. However, his actual field research did not begin until three months after receiving the permit, when his team cleared the outer trench. Prior to clearing the trench, Thorne had secured emergency funding from the Antiquities Board, a step he was forced to take only after his initial university grant was abruptly revoked just weeks following the permit approval. It was only after the outer trench was completely excavated that the team uncovered the bronze storage jars.
According to the passage, which of the following events occurred FIRST chronologically?
- Identifying the anomalous soil density patternsCevap
- BSecuring the official excavation permit
- CSecuring emergency funding from the Antiquities Board
- DClearing the outer trench at Alaca Höyük