[单选题]
A farsighted person can read a newspaper held 25 cm from h re+ k1lkl,fn.+ e:dskis eyes, if herw1f;l5d l( as wears glasses ofs 5l(1 ardf;lw +3.33 diopters. What is this person's near point?
A. $4.2 \; cm$
B. $25 \; cm$
C. $31 \; cm$
D. $1.5 \; m$
