If the power spectral density of stationary random process is a sine-squared function of frequency, the shape of its autocorrelation is

• A. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-02-12-1.png">
• B. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-02-12-2.png">
• C. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-02-12-3.png">
• D. <img src="/_files/images/electronics-and-communication-engineering/exam-question-papers/6-02-12-4.png">