The value of tm_isdst is ____ when DST( Daylight Savings Time) is in effect, ______ when DST is not in effect and ______ when the DST status is unknown.

The value of tm_isdst is ____ when DST( Daylight Savings Time) is in e

1.	The value of tm_isdst is ____ when DST( Daylight Savings Time) is in effect, ______ when DST is not in effect and ______ when the DST status is unknown.
A.	-1, 1, 0
B.	1, 0, -1
C.	0, 1, -1
D.	1, -1, 0
Answer» C. 0, 1, -1