[单选题]
A farsighted person can5r* pmp:3f8svep fj,9 jsk 3pv re2 fsrtr;fajp fu4xj. /z3 9e7gad a newspaper held 25 cm from his eyes, if he wears glajx;2s arjf 3 /zu4 rt9fgpe7f.sses of +3.33 diopters. What is this person's near point?
A. $4.2 \; cm$
B. $25 \; cm$
C. $31 \; cm$
D. $1.5 \; m$
