A Machinist with Normal Vision Has a near Point at 25

Multiple Choice

A machinist with normal vision has a near point at 25 cm. This machinist wears +4.25-diopter eyeglasses in order to do very close work. With these eyeglasses, what is the near point of the
Machinist? Assume that he wears the glasses extremely close to his eyes.

A) 15 cm
B) 7 cm
C) 17 cm
D) 10 cm
E) 12 cm