If a copper wire of given length is stretched to double its length, then what will be the change in resistance and resistivity of the wire?
A. Change in resistance: Doubled, Change in resistivity: Doubled
B. Change in resistance: Doubled, Change in resistivity: Halved
C. Change in resistance: Quadrupled, Change in resistivity: Doubled
D. Change in resistance: Halved, Change in resistivity: Unchanged
