What Will Be the Immediate Action of an Allergen When

question 37

Multiple Choice

What will be the immediate action of an allergen when it enters the body for a second time?

• A) Binding of allergen to adjacent IgE binding sites on mast cells and basophils
• B) Prostaglandins cause vasodilation and increased vascular permeability
• C) Histamine acts on smooth muscle
• D) Binding of IgE by the Fc region to mast cells and basophils
• E) Degranulation

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Definitions:

Expiration

The end of the life of a financial instrument or contract, after which it ceases to be valid.

Call Option

A financial contract that gives the buyer the right, but not the obligation, to buy a stock, bond, commodity, or other asset at a specified price within a specific time period.

Expiration

The date on which a derivative contract such as an option or futures contract becomes void and the right to exercise it no longer exists.

Arbitrage Opportunity

A situation where a trader can profit from differences in price of the same asset in different markets without taking on any risk.