The resistivity of the material of a wire is $$10^{-7}\,\Omega\text{ m}$$. If the wire is stretched to increase its length by $$50\%$$, then its resistivity will be (assume stretching does not change the temperature)

A

$$10^{-7}\,\Omega\text{ m}$$

B

$$1.5 \times 10^{-7}\,\Omega\text{ m}$$

C

$$2.25 \times 10^{-7}\,\Omega\text{ m}$$

D

$$2 \times 10^{-7}\,\Omega\text{ m}$$