Which of the following arrangements in the sequence shown can be used to obtain a pure spectrum of white light?

• A.source, slit, converging lens, prism, converging lens, screen.
• B.source, slit, diverging lens, prism, diverging lens, screen.
• C.source, converging lens, prism, diverging lens, screen.
• D.source, slit, prism, diverging lens, converging lens, screen.
• E.source, slit, prism, diverging lens, sreen.