Which statement is true of the selective service?
o
a. it is not a legal obligation for citizens, but it is a civic responsibility.
o
b. it is primarily a way to ensure citizens follow the law.
c. it is a means of selecting citizens for jury duty.
o
d. it is a system that will be used if there is a military draft in the
future.

D. It is a system that will be used if there is a military draft in the  future.

Explanation:

Selective service is a mandate from the government that make citizens legally required to join the military under a specific circumstances. (usually only male citizens above the age of 18)

Selective service usually only implemented if the military is in urgent need of personals and the number of applicants who enter military willingly is not enough for the operation.

when your a dog and you need a bone.   go and eat a rabbit