Refer to the Diagram

question 77

Multiple Choice

Refer to the diagram. By producing at output level Q,

• A)neither productive nor allocative efficiency is achieved.
• B)both productive and allocative efficiency are achieved.
• C)allocative efficiency is achieved, but productive efficiency is not.
• D)productive efficiency is achieved, but allocative efficiency is not.

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Definitions:

Primary Immune Response

The initial reaction of the immune system when exposed to an antigen for the first time.

Memory Cells

A type of white blood cell that retains a memory of previously encountered pathogens and mounts a stronger and faster response upon reexposure.

Antigen

A substance that when introduced into the body, prompts the generation of an immune response by the production of antibodies.

Secondary Immune Response

The body's immune system's more rapid and intensified response to a pathogen it recognizes from a previous infection.