A circular copper ring at 20.0°C has a hole with an area of 9.980 cm². What minimum temperature must it have so that it can be slipped onto a steel metal rod having a cross sectional area of 10.00 cm²? (Coefficient of linear expansion of copper is 17 x 10^-6(°C)^-1

A 75.5°C

B 79.0°C

C 89.0°C