Which of the Following Statements About Stacks Is Incorrect

question 3

Multiple Choice

Which of the following statements about stacks is incorrect?

• A) Stacks can be implemented using linked lists.
• B) Stacks are first-in, first-out (FIFO) data structures.
• C) New nodes can only be added to the top of the stack.
• D) The last node (at the bottom) of a stack has a null (0) link.

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Definitions:

Carboxyl Group

A functional group consisting of a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group (-COOH), present in organic acids.

Coenzyme Q

A fat-soluble substance found in the mitochondria, essential for the production of energy in cells, and functions as an antioxidant.

Transfer Electrons

The movement of electrons from one atom or molecule to another, a fundamental process in chemical reactions and electricity conductance.

Dehydrogenation

A form of oxidation in which hydrogen atoms are removed from a molecule.