Check the correct statements on scattering of light
`S1`: Rayleigh scattering is responsible for the bluish appearance of sky
`S2`: Rayleigh scattering is proportional to `1//lambda^(4)` when the size of the scatterer is much less than `lambda`
`S3`: Clouds having droplets of water (large scattering objects) scatter all wavelengths are almost equal and so are generally white
`S4`: The sun looks reddish at sunset and sunrise due to Rayleigh scattering

Options

A. S1 only
B. S1 and S2
C. S2 and S3
D. S1, S2, S3 and S4

Answer

D