In 2022, researchers rediscovered ancient indigenous glyphs, or drawings, on the walls of a cave in Alabama. The cave’s ceiling was only a few feet high, affording no position from which the glyphs, being as wide as ten feet, could be viewed or photographed in their entirety. However, the researchers used a technique called photogrammetry to assemble numerous photos of the walls into a 3D model. They then worked with representatives of tribes originally from the region, including the Chickasaw Nation, to understand the significance of the animal and humanoid figures adorning the cave.
According to the text, what challenge did the researchers have to overcome to examine the glyphs?
Explanation
Context: In 2022, researchers found ancient Indigenous glyphs in an Alabama cave. The cave ceiling was only a few feet high, so the glyphs (up to 10 feet wide) couldn't be viewed or photographed completely from any position. To solve this, researchers used photogrammetry to assemble many partial photos into a 3D model.
Answer: D) The cave's dimensions prevented the researchers from fully viewing the glyphs.
Why? The text explicitly states: "The cave's ceiling was only a few feet high, affording no position from which the glyphs...could be viewed or photographed in their entirety." D is a direct restatement of the stated challenge.
Traps:
- A) "The cave was so remote that the researchers couldn't easily reach it" → remoteness is not mentioned; the challenge was the cave's physical dimensions
- B) "Some of the glyphs were so faint that they couldn't be photographed" → faintness is not mentioned; the problem was that the glyphs were too large to capture completely from the low-ceilinged cave
- C) "The researchers were unable to create a 3D model of the cave" → the researchers actually DID create a 3D model successfully using photogrammetry