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During celestial navigation practiced by the Polynesian, which consequence occurred when a navigator overestimated the ocean swell's period?

A)Inaccurate latitude determination results
B)Lateral drift calculation errors arise
C)Longitude estimates became less reliable
D)Speed estimation induced significant errors

💡 Explanation

Incorrect ocean swell period estimation introduces errors in estimating wave propagation direction; this induced error in navigation, because estimation used wave angles combined with star positions (direction finding), so parallax error propagates in the estimation of course direction, therefore position data become unreliable, rather than simply forward speed or a lateral drift calculation.

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