Consider the following statements The amplitude of an FM wave is constant FM is more immune to noise than AM FM broadcasts operate in upper VHF and UHF frequency ranges FM transmitting and receiving equipments are simpler as compared to AM transmitting and receiving equipments Which of the above are correct?

• 1, 2, 3, 4
• 1, 2, 3
• 2, 3, 4
• 1, 3, 4