A Wire of Length L, Cross-Sectional Area A, and Resistance

A wire of length L, cross-sectional area A, and resistance R is now drawn out by pulling such that its new resistance is 25R. What is its new cross-sectional area? Assume the density remains constant.)

A) 1.00 × 10^-1 A
B) 6.67 × 10^-1 A
C) 4.00 × 10^-1 A
D) 2.50 × 10^-1 A
E) 2.00 × 10^-1 A