A wire of length \( l \) and uniform area of cross-section A has resistance R. Another wire of s...

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A wire of length \( l \) and uniform area of cross-section A has resistance R. Another wire of same material of length \( 2 l \) has resistance R. The area of cross-section of this wire will be
a. \( 3 \mathrm{~A} \)
b. \( 3 \mathrm{~A} / 2 \)
c. \( 2 \mathrm{~A} \)
d. \( \mathrm{A} / 2 \)
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