If a cylinder is covered by two hemispherical lid having same radius as of cylinder, then the to...

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If a cylinder is covered by two hemispherical lid having same radius as of cylinder, then the total curved surface area of the new object will be
a. \( 4 \pi \mathrm{rh}+2 \pi \mathrm{r}^{2} \)
b. \( 3 \pi \mathrm{rh}-\pi \mathrm{r}^{2} \)
-c. \( 2 \pi \mathrm{rh}+4 \pi \mathrm{r}^{2} \)
d. \( 2 \pi \mathrm{rh}+4 \pi \mathrm{r} \)
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