A copper wire of length 2.2m and a steel wire of length 1.6m, both of diameter 3.0mm are connected end to end. When stretched by a force, the elongation in length 0.50 mm is produced in the copper wire. The streching force is `(Y_(copper)=1.1xx10^(11)Nm^(-2)`,
`Y_(steel)=2.0xx10^(11)Nm^(-2))`
A. `1.8xx10^(2)N`
B. `2.4xx10^(2)N`
C. `3.6xx10^(2)N`
D. `5.4xx10^(2)N`