The time interval from when the given star passes directly overhead to when it next passed directly overhead, is defined as

both the terms are similar, so any of these may be used

The time interval from when the given star passes directly overhead to

1.	The time interval from when the given star passes directly overhead to when it next passed directly overhead, is defined as
A.	one sidereal day
B.	one solar day
C.	both the terms are similar, so any of these may be used
D.	None of the above
Answer» B. one solar day