[单选题]
A farsighted person can n2zx5hf z28ri reaqez ,.necje l :w7p44tf1ex:f d a newspaper held 25 cm from his eyes, if he wears glasses o :p:ce4,7ft4 eq exnwz1f.l ejf +3.33 diopters. What is this person's near point?
A. $4.2 \; cm$
B. $25 \; cm$
C. $31 \; cm$
D. $1.5 \; m$