Consider the following statements 1. Light of longer wavelength is scattered more than that of short wavelength. 2. The speed of visible light in water is 0.95 times that of vacuum. 3. Radio waves are produced by fast oscillating electric currents. 4. Police use the reflected miniature radio wave effect of Doppler to detect vehicles over driving. Which of the above statements are correct?

• A. 1 and 2
• B. 1 and 3
• C. 2 and 4
• D. 3 and 4