Two wires have equal lengths and equal resistances. Wire X is formed from a metal with resistivity $1.7 \times 10^{-8}\,\Omega\,\text{m}$, and wire Y is formed from a metal with resistivity $5.6 \times 10^{-8}\,\Omega\,\text{m}$. The diameter of wire X is $0.315\,\text{mm}$. What diameter does wire Y have?
- A$0.17\,\text{mm}$
- B$0.33\,\text{mm}$
- C$0.57\,\text{mm}$
- D$1.0\,\text{mm}$