[单选题]
The near point of a farsightdi d1b tye,e 5bjzt4 h0:tdz)hwz0daku 5q310ed person is 100 cm.e,)9i7x b a2d2bzqh ee She places reading glasses close ),za qh7ieb2x9 deeb2 to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is required?
