[单选题]
The near point of a farsighted person is 100 1sqwpq/ 9il )fcm. She pjk+qih1h. )k6zh/i nu laces reading glasses close to her eyes, and with them she can comfortably read a newspaper at a distance of 25 cm. What lens power is rzki)iukhhq./jhn +61 equired?
