Given below are two statements

Statement I : For transmitting a signal, size of antenna $\left(l\right)$ should be comparable to wavelength of signal (at least $l =\frac{\lambda }{4}$ in dimension).

Statement II : In amplitude modulation, amplitude of carrier wave remains constant (unchanged).

In the light of the above statements, choose the most appropriate answer from the options given below

• A

  Both Statement I and Statement II are correct
• B

  Both Statement I and Statement II are incorrect
• C

  Statement I is incorrect but Statement II is correct
• Correct answer
  D

  Statement I is correct but Statement II is incorrect

Hence, the correct answer is option: 'D'.