In a certain camera,a combination of four similar thin convex lenses are arranged axially in contact. Then the power of the combination and the total magnification in comparison to the power $(p)$ and magnification $(m)$ for each lens will be,respectively
- A$4 p$ and $4 m$
- B$p^4$ and $4 m$
- C$4 p$ and $m^4$
- D$p^4$ and $m^4$
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