Blue colour of water in sea is due to

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: Dissolved substances can be removed from a colloidal solution by diffusion through a parchment paper.
Reason $(R)$: Particles in a true solution cannot pass through parchment paper but the colloidal particles can pass through the parchment paper.
In the light of the above statements,choose the correct answer from the options given below.

Which one of the following properties of colloids is related to the scattering of light?

In lyophilic sols,the attraction of sol particles towards the medium is due to:

When a freshly precipitated substance is converted into a colloidal solution with the help of a third substance,the process is known as

Light scattering takes place in