The Statement DataFile.close();

question 15

Multiple Choice

The statement dataFile.close() ;

• A) is illegal in C++.
• B) needs a file name argument to execute correctly.
• C) closes a file.
• D) is legal but risks losing valuable data.
• E) None of the above

---

Definitions:

Test Marketing

A strategy used by companies to evaluate the viability of a new product or service in a limited geographical area before a full-scale launch.

Price Rationing

The allocation of limited goods or services using prices, where higher prices curb demand to match the supply.

Focus Group

A small, diverse group of people whose reactions are studied to gauge the response to a specific product, service, or policy.

Total Revenue

The total amount of money received by a firm from selling goods or services before any costs or expenses are deducted.