[单选题]
An object is thrown upward with a sp; klsdd*hego5w033w:okb 4 qjeed of *jw . 77 7zglq(v/bikl+vbcsn em*cp615 m/s on the surface of planet X where the acceleration due tl.bp bvi(7 nsz6cej7mv*q 7glcwk* +/o gravity is $2.5 \; m/s^2$. How long does it take for the object to return to where it is thrown?
A. $6.0 \; s$
B. $8.0 \; s$
C. $10 \; s$
D. $12 \; s$
