A transverse section of the stem is stained first with the safranin and then with fast green following the usual schedule of double staining for the preparation of a permanent slide. What would be the colour of the stained xylem and phloem?

Question

$\begin{array}{1 1}\text{a.Red and Green} \\ \text{b. Green and Red} \\\text{c.Orange and Yellow}\\ \text{d.Purple and Orange}\end{array} $