The Line of Code

question 10

Multiple Choice

The line of code
sw.Close
when used with the line
sw = IO.File.CreateText(fileName)
completes which of the following tasks?

• A) it closes the current application
• B) it closes the current form
• C) it closes the currently opened window of the application
• D) it closes the file referred to by the variable name sw

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Definitions:

Significant Barriers

Major obstacles or impediments that prevent entities from entering a market or industry.

Horizontal Demand Curve

A demand curve representing a situation where a small change in price leads to an infinite change in quantity demanded, typically associated with perfectly competitive markets.

Four-Firm Concentration Ratio

A measure that indicates the total market share controlled by the four largest firms within an industry.

Herfindahl Index

A measure of market concentration calculated by summing the squares of the market shares of all firms in the industry.