SAT OwlQuestion bank / Rhetorical Synthesis
While researching a topic, a student has taken the following notes:
• Hedy Lamarr (1914–2000) was a film actress who starred in Hollywood movies in the 1930s and 1940s.
• During World War II, she worked with composer George Antheil on a radio guidance system for torpedoes.
• Their system used frequency hopping to keep signals from being jammed.
• Principles of frequency hopping were later used in technologies such as Wi-Fi and Bluetooth.
The student wants to emphasize Lamarr's contribution to technology. Which choice most effectively uses relevant information from the notes to accomplish this goal?
Hedy Lamarr was a film actress who starred in Hollywood movies in the 1930s and 1940s.
During World War II, Hedy Lamarr worked with composer George Antheil.
Hedy Lamarr lived from 1914 to 2000.
Hedy Lamarr co-developed a frequency-hopping system whose principles were later used in Wi-Fi and Bluetooth.
Show answer and explanation
Answer: D
To show Lamarr's contribution to technology, the sentence needs to name what she developed and why it mattered. Choice D names the frequency-hopping system and connects it to Wi-Fi and Bluetooth. Choice A is about her acting career, and choices B and C never mention any invention.
Choice B mentions her collaboration with Antheil but never says what they built or why it was important.
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