Expression of IdeasVery hardSynthesis: acknowledging a limitation while making a claim
Expression of Ideas practice question
While researching a topic, a student has taken the following notes:
- The Skerry lighthouse was built in 1811 and is the oldest working light on the coast.
- Its original lamp burned whale oil and was visible for 9 nautical miles.
- The current electric lamp is visible for 18 nautical miles.
- The lighthouse's records were lost in a fire in 1902.
- Nothing is known of the keepers before 1902.
The student wants to make a claim about the lighthouse's history while acknowledging a gap in the evidence. Which choice most effectively uses relevant information from the notes to accomplish this goal?
- A. The Skerry lighthouse has been a working light since 1811, though because its records were lost in a fire in 1902, nothing is known of the keepers who tended it before then.Correct
- B. The Skerry lighthouse was built in 1811 and is the oldest working light on the coast.
- C. The current electric lamp is visible for 18 nautical miles, twice the range of the original whale-oil lamp.
- D. The lighthouse's records were lost in a fire in 1902.
Answer: A. The Skerry lighthouse has been a working light since 1811, though because its records were lost in a fire in 1902, nothing is known of the keepers who tended it before then.
A claim (working since 1811) and the gap (no keepers known before 1902).
Why the other answers are wrong
- B. The Skerry lighthouse was built in 1811 and is the oldest working light on the coast.
- A claim with no acknowledged gap.
- C. The current electric lamp is visible for 18 nautical miles, twice the range of the original whale-oil lamp.
- About the lamp; no gap.
- D. The lighthouse's records were lost in a fire in 1902.
- The gap without the claim.
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