Texts: Select the correct transfer function Y(s)/R(s) of the following system:
1. R(s)
2. Y(s) / D
3. G(s)
4. G(s)
5. G(s) / G(s)
6. G(s) / G(s)
7. 1 - C(s) * G(s) * G(s)
8. G(s) / G(s)
9. 1 + G(s) * S * G(s) * G(s)
10. G(s)
11. G(1) * s / (1 + G(s) * G(s))
12. G(s)
13. G(s) * (s)^n / (1 + G(s) * G(s))