Rafael spent his pocket money of \(\$150\) to buy three different articles \(A, B,\) and \(C\) from the same shopkeeper. Rafael used \(30\) percent of his pocket money to buy article \(A,\) which was discounted by \(10\) percent, \(30\) percent of his pocket money to buy article \(B,\) which was discounted by \(25\) percent, and the rest of the money to buy article \(C,\) which was discounted by \(50\) percent. If articles \(A, B,\) and \(C\) were marked up by \(25\) percent, \(100\) percent, and \(140\) percent respectively, what was the percentage profit made by the shopkeeper on selling the articles?

A. \(20\%\)
B. \(25\%\)
C. \(30\%\)
D. \(33\%\)
E. \(40\%\)

Answer: B

Source: e-GMAT