Which Statement Is True

question 149

Multiple Choice

Which statement is true?

• A) Autoimmunity always results from a reaction to self antigens by the cellular, but not the humoral, immune system.
• B) Failure of clonal deletion is a potential cause of autoimmunity.
• C) Systemic lupus erythematosis is an immune deficiency disorder in which B cells lose the ability to give rise to plasma cells.
• D) People with rheumatoid arthritis have an excess of a protein that blocks T cells from reacting to self antigens.
• E) Type I diabetes is an autoimmune disease that results in cells losing their ability to respond to insulin.

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Definitions:

Opportunity Cost

The cost of missing out on the next best alternative when one option is chosen over another.

Italy

A European country known for its rich history, culture, and significant contributions to art, food, and fashion.

Opportunity Cost

represents the value of the next best alternative that is forfeited when a decision is made to pursue a particular course of action.

Portugal

Portugal is a southern European country on the Iberian Peninsula, known for its long history, cultural heritage, and significant contributions to world exploration.