A top-down parser generates

1.	A top-down parser generates
A.	Rightmost derivation
B.	Rightmost derivation in reverse
C.	Leftmost derivation
D.	Leftmost derivation in reverse
Answer» D. Leftmost derivation in reverse

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A top-down parser generates
Match the following:(P)Lexical analysis(i)Leftmost derivation(Q)Top down parsing(ii)Type checking(R)Semantic analysis(iii)Regular expressions(S)Runtime environments(iv)Activation records
Assume that the SLR parser for a grammar G has n1 states and the LALR parser for G has n2 states. The relationship between n1 and n2 is :

A top-down parser generates

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