A boy is asked to put in a basket one mango when ordered 'one', one orange when ordered 'two', one apple when ordered 'three' and is asked to take out from the basket one mango and orange when ordered 'four'. A sequence of orders is given as 1 2 3 3 2 1 4 2 3 1 4 2 2 3 3 1 4 1 1 3 2 3 4. How many total oranges were in the basket at the end of the above sequence?

• A. 1
• B. 4
• C. 3
• D. 2