(A) Shift step that advances in the
input stream by K(K > 1) symbols and Reduce step that applies a completed
grammar rule to some recent parse trees, joining them
together as one tree with a new root
symbol.
(B) Shift step that advances in the
input stream by one symbol and Reduce step that applies a completed grammar
rule to some recent parse trees, joining them together as one tree with a new
root symbol.
(C) Shift step that advances in the
input stream by K(K = 2) symbols and Reduce step that applies a completed
grammar rule to form a single tree.
(D) Shift step that does not advance
in the input stream and Reduce step that applies a completed grammar rule to
form a single tree.
Answer B.
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