Which of the following correctly defines Top-Down parser?

A) Top-Down Parser starts parsing the tree from the start symbol, constructing the tree up to the input symbol

B) Top-Down Parser starts parsing from the input symbol and constructs the tree up to the start symbol

C) Both (A) and (B)

D) None of the above

Correct Answer : Top-Down Parser starts parsing the tree from the start symbol, constructing the tree up to the input symbol

Explanation : Top-Down Parser starts parsing the tree from the start symbol, constructing the tree up to the input symbol. Top-Down parser uses a recursive procedure to process the inputs.