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Calendars and Leap-Year Rules
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Astronomy
AST.051 Calendars and Leap-Year Rules
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Which mismatch does a rule of 7 leap months in 19 years most directly address?
A
Nineteen solar years contain about 235 lunar phase cycles, not just 228.
B
A day is not a whole number of hours.
C
Four solar years contain exactly 1461 lunar months.
D
A century year always has 400 lunar phases.
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