[单选题]
An object is located 2.6 m in front of a plane mirror. The image formed r j58ta bl0f3cby th .cm7 sfx+nfwb893hidbwn+t 4e mirror app9f+ smcn3.7fi8n wd4th+bwbxears to be
A. 1.3 m in front of the mirror.
B. on the mirror's surface.
C. 1.3 m behind the mirror's surface.
D. 2.6 m behind the mirror's surface.