In this selection, the clay wine jar that scientists were studying was found while
A. searching for sunken treasure off the Greek coast.
B. excavating an ancient Roman city in Spain.
C. studying an earthquake-devastated site in Italy.
D. exploring an underwater cave in the Mediterranean.
The correct answer is B. excavating an ancient Roman city in Spain.
Explanation: Scientists discovered the clay wine jar while conducting excavations at a site associated with ancient Roman civilization in Spain, which suggests that the artifact was part of the historical context being studied there.