Answer
4.17D.
Work Step by Step
The near point is at infinity. For any objects that are nearby, the image must be formed at infinity: $s’=\infty$.
Use the lens equation.
$$\frac{1}{s}+\frac{1}{s’}=\frac{1}{f}$$
$$\frac{1}{0.24m}+\frac{1}{\infty}=\frac{1}{f}$$
$$\frac{1}{f}=4.17m^{-1}$$
The reciprocal of the focal length is the power.
