Shift-Reduce Parsers Perform the Following

question 9

Multiple Choice

Shift-Reduce parsers perform the following:

• 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.

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Definitions:

Efficiency Loss

The reduction in economic welfare or efficiency that occurs when a market does not allocate resources optimally, often due to externalities or market power.

Demand Curves

A visual depiction showing how the price of a product relates to the amount people want to buy.

Supply Curves

Graphical representations of the relationship between the price of goods and the quantity that producers are willing to supply.

Excise Tax

A tax levied on specific goods, services, or transactions, often to discourage their use or generate revenue.