The unit step response of an under damped second system has steady state value of - 2. Which one of the following transfer functions has these properties?

• A. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-05-45-1.png">
• B. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-05-45-2.png">
• C. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-05-45-3.png">
• D. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-05-45-4.png">