单选题A body can only be observed at lower transit when（）.Athe declination is the opposite name to the latitudeBthe algebraic sum of the colatitude and declination exceeds 90Cthe observer is in high latitudes above either polar circleDthe body is circumpolar
单选题
A body can only be observed at lower transit when（）.
A
the declination is the opposite name to the latitude
B
the algebraic sum of the colatitude and declination exceeds 90
C
the observer is in high latitudes above either polar circle
D
the body is circumpolar
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