A person cannot see distinctly objects kept beyond \( 2 \mathrm{~m} \). This defect can be corre...

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A person cannot see distinctly objects kept beyond \( 2 \mathrm{~m} \). This defect can be corrected by using a lens of power
a. \( +0.9 \mathrm{D} \)
b. \( -0.2 \mathrm{D} \)
c. \( +0.2 \mathrm{D} \)
d. \( -0.5 \mathrm{D} \)
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