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Q: While watching 3D movies in the theater, we have to wear special glasses because:
  • A. Glasses allow our left and right eyes to see different images.
  • B. 3D films use special colors which cannot be felt by human eyes.
  • C. 3D films are brighter than ordinary films and can damage our eyes if seen directly.
  • D. Glasses allow both eyes to see the same images.
Correct Answer: Option B - When watching 3D movies in the theater, we have to wear special glasses, because 3D movies use special colors, which cannot be felt by human eyes.
B. When watching 3D movies in the theater, we have to wear special glasses, because 3D movies use special colors, which cannot be felt by human eyes.

Explanations:

When watching 3D movies in the theater, we have to wear special glasses, because 3D movies use special colors, which cannot be felt by human eyes.