When Marginal Cost Is Less Than Average Total Cost ______

question 31

Multiple Choice

When marginal cost is less than average total cost ______ as output increases.

• A)Average total cost must be increasing
• B)Average variable cost must be decreasing
• C)Average fixed cost must be increasing
• D)Average total cost must be decreasing

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Definitions:

T Cells

A type of white blood cell that plays a central role in the immune response by attacking infected or cancerous cells.

Antigen-presenting Cells

Specialized cells that process and present antigens to T-cells, initiating an immune response.

Cold Viruses

Viruses responsible for the common cold, primarily rhinoviruses, which infect the respiratory tract and trigger symptoms like coughing and sneezing.

Thymus Gland

An endocrine gland that functions as part of the lymphatic system; processes T cells; important in cell-mediated immunity.