According to the text, what challenge did the researchers have to overcome to examine the glyphs?
A
The cave was so remote that the researchers couldn’t easily reach it.
B
Some of the glyphs were so faint that they couldn’t be photographed.
C
The researchers were unable to create a 3D model of the cave.
D
The cave’s dimensions prevented the researchers from fully viewing the glyphs.
Explanation
Correct answer: D.
Choice D is the best answer. The text describes the very low ceiling of the cave, making it impossible to photograph the very wide glyphs all at once.
Why the other choices are wrong
Choice A
Choice A is incorrect. The text doesn’t say this. It never suggests that the cave was remote or difficult to access, just that the cave itself was difficult to photograph well.
Choice B
Choice B is incorrect. The text doesn’t say this. The glyphs were so wide that they couldn’t be photographed completely.
Choice C
Choice C is incorrect. The text states the opposite of this. The researchers “used a technique called photogrammetry to assemble numerous photos of the walls into a 3D model.”