The following paragraphs are from an essay about eighteenth-century navigation.
[1]
For centuries, sailors navigated the open seas by measuring the angles of the sun and stars to determine their latitude, but calculating longitude remained a deadly puzzle. Without a reliable way to know their east-west position, ships frequently drifted off course, leading to disastrous shipwrecks and costly delays. Desperate for a solution, the British Parliament passed the Longitude Act of 1714, promising a fortune to anyone who could solve the problem.
[2]
____________________ Harrison, a self-educated clockmaker from Yorkshire, believed the key lay in precision timekeeping rather than stargazing. While astronomers searched the night sky for celestial patterns, Harrison spent decades constructing highly accurate clocks that could withstand the motion and temperature changes of a sea voyage, ultimately creating the marine chronometer.
Which choice provides the most effective transition from the preceding paragraph to the paragraph that follows?
- ACalculating latitude, by contrast, was a far simpler task that navigators had mastered long before the eighteenth century.
- This lucrative incentive attracted many competitors, but the most revolutionary proposal came from an unlikely source.Cevap
- CAstronomers tried to map the motion of the moon to solve this puzzle, they believed celestial observation was the only reliable method.
- DAlthough the Board of Longitude favored astronomical methods, Harrison focuses instead on mechanical devices.