[单选题]
If you take a given pendulum to the Mo t-take)v )zproc 87.(3gpc ddon, where fzj2(,tyh+o hthe acceleration of gravity is less than on Earth, the resonant f,+jht2fy h o(zrequency of the pendulum will
A. increase.
B. decrease.
C. not change.
D. either increase or decrease; it depends on its length to mass ratio.