[单选题]
An object is thrown upwardl 3slzo6dvo++ wt*p;y92s)2 isf,na3cmq ygp l ith a speed of 15 m/s on the surface of planet X where the acceleration due to gravity it*s 2mnypc,)qaps ;g 3f i29yls $2.5 \; m/s^2$. 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. $12 \; s$
