D is the correct answer.
In the badly drawn diagram attached, you will find the <em>yellow</em> represents wavelength, which is the distance between identical points on consecutive waves.
The <em>green</em> represents the amplitude, which is the distance between the origin (middle) and crest/trough (top/bottom)
<span><span>The George Foster Peabody Awards (or simply Peabody Awards) program, named for businessman and philanthropist George Peabody, recognizes distinguished and meritorious public service by radio and television stations, networks, online media, producing organizations, and individuals.</span><span>Reflecting excellence in quality, rather than popularity or commercial success, the Peabody is awarded to about 25–35 winners annually from more than 1,000 entries.[1][2] Because submissions are accepted from a wide variety of sources and styles, deliberations seek "Excellence On Its Own Terms."[3]</span><span>Each entry is evaluated on the achievement of standards it establishes within its own contexts.[2][4] Entries are self-selected by those making submissions, for which a US$300 fee (US$175 for radio) is required.[5<span>]</span></span></span>
Explanation:
The main difference between Monophony polyphony and homophony is that Monophony refers to music with a single melodic line and polyphony refers to music with two or more simultaneous melodic lines, while homophony refers to music in which the main melodic line is supported by an additional musical line(s).
