[单选题]
A farsighted person can read a 2o xuji:ihwp(og,s( 8newspaper held 25 cm fra6v1b22rh. iq z8ayg k((awr kom his eyes, if he wears glrk1ri6bk2 2g8 av(a w(ahq.y zasses of +3.33 diopters. What is this person's near point?
A. $4.2 \; cm$
B. $25 \; cm$
C. $31 \; cm$
D. $1.5 \; m$