Which of the Following Statements Is/are Correct

Multiple Choice

Which of the following statements is/are correct?
i.Wavelength is the distance between identical parts of a wave
ii.Frequency is the number of complete waves passing a point in a given period of time
iii.The speed of light is equal to the product of the wavelength and frequency of an electromagnetic wave

A) i only
B) iii only
C) i and ii
D) ii and iii
E) i, ii, and iii