Which two natural materials are highlighted as sources in Greece?

• A. limestone and marble
• B. granite and sandstone
• C. brick and cement
• D. glass and ceramic

Answer: (A)

The main idea here is identifying natural stone sources that Greece is famous for. Limestone and marble are classic Greek stones that have been quarried for centuries. Greece’s geology yields abundant limestone for building blocks, and its marble quarries—notably Pentelic and Parian marble—have supplied high-quality stone used in iconic temples and monuments. This makes limestone and marble the best fit as the highlighted natural sources. The other options involve materials that are either not primarily natural stone sources in Greece (like bricks or cement, which are manufactured) or refer to stones that aren’t the standout natural sources emphasized in this context.