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Craft and StructureEasy–MediumPurpose of a text explaining a rule

Craft and Structure practice question

Visitors sometimes ask why the gallery forbids flash photography. The answer is not fussiness: the brief burst of intense light from a flash, repeated by thousands of visitors a year, fades the pigments in old paintings just as surely as sunlight does.

Which choice best states the main purpose of the text?

  1. A. To explain the reason for a rule that visitors question.Correct
  2. B. To describe how cameras work.
  3. C. To encourage visitors to take photographs.
  4. D. To compare sunlight with electric light.

Answer: A. To explain the reason for a rule that visitors question.

Why the rule exists.

Why the other answers are wrong

B. To describe how cameras work.
No description of cameras.
C. To encourage visitors to take photographs.
The text discourages flash.
D. To compare sunlight with electric light.
Sunlight is a comparison, not the subject.

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