Explain Froth Flotation Process

Question

$\begin{array}{1 1} \text{(a)Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.} \\ \text{(b)Froth flotation is a process by which components in a chemical mixture are separated into different parts (called fractions) according to their different boiling points.} \\ \text{(c)Froth flotation is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation.} \\ \text{(d) None of the above} \end{array}$