[单选题]
A farsighted person camitsv+l e.99lgc2n s- n read a newspaper held 25 cm from hisodufy2 v * xj* (ah w8qq,/9qebmalid- :r;w:x eyes, if he wears glasses ofh9:,f- 2db vl ( aaq:oxxw qm/euyq; r*j*8wid +3.33 diopters. What is this person's near point?
A. $4.2 \; cm$
B. $25 \; cm$
C. $31 \; cm$
D. $1.5 \; m$