Four wires are all made from the same metal. Their cross-sectional areas, lengths and thermodynamic temperatures are shown. Which wire has the greatest resistance?
- Across-sectional area $A$, length $2L$, temperature $2T$
- Bcross-sectional area $A$, length $L$, temperature $T$
- Ccross-sectional area $2A$, length $2L$, temperature $2T$
- Dcross-sectional area $2A$, length $L$, temperature $T$