Particulate matter can be removed by various ways. A and B are one the best ways. Identify them correctly.

Options

A. `{:(" "A," "B),("Sewage treatment plant","Scrubber"):}`
B. `{:(" "A," "B),("Sedimentation tank","Electrostatic precipitator"):}`
C. `{:(" "A," "B),("Electrostatic precipitor","Sewage treatment plant"):}`
D. `{:(" "A," "B),("Scrubber","Electrostatic precipitator"):}`

Answer

D