[单选题]
A farsighted person can *9kpg ktzy3o, oo:rif y;e2nhog+;5 x kc++ vmread a newspaper held 25 cm from his eyes, a 7a;(cdv-vj;w 2jjdwif he wears gla( ;-2 dwvja vjcwa7jd;sses of +3.33 diopters. What is this person's near point?
A. $4.2 \; cm$
B. $25 \; cm$
C. $31 \; cm$
D. $1.5 \; m$