Two Solenoids, Wound from Wire from the Same Spool, Have

Two solenoids, wound from wire from the same spool, have the same length and cross-sectional area, but solenoid #1 has twice the turns of solenoid #2. If these solenoids are each connected to a circuit, and the only non-negligible resistance is that of the solenoids, which solenoid gives the greater time constant and by what factor?

A) #2 by a factor of 2
B) #2 by a factor of 4
C) #1 by a factor of 2
D) No answer above is completely correct.