16Hit1600
Expression of IdeasEasy–MediumSynthesis: giving a reason for a decision

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - The Ness lighthouse was automated in 1988. - Before automation, three keepers lived at the lighthouse in rotation. - Automation was chosen because a reliable electric supply reached the headland in 1986. - The keepers' cottages are now holiday lets. - The light is visible for 24 nautical miles.

The student wants to explain why the Ness lighthouse was automated when it was. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. The Ness lighthouse was automated in 1988 because a reliable electric supply had reached the headland two years earlier.Correct
  2. B. Three keepers lived at the lighthouse in rotation.
  3. C. The keepers' cottages are now holiday lets.
  4. D. The light is visible for 24 nautical miles.

Answer: A. The Ness lighthouse was automated in 1988 because a reliable electric supply had reached the headland two years earlier.

The reason: electricity arrived in 1986.

Why the other answers are wrong

B. Three keepers lived at the lighthouse in rotation.
Before, not why.
C. The keepers' cottages are now holiday lets.
After, not why.
D. The light is visible for 24 nautical miles.
Range, not reason.

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