Chapter 4, Problem 1MC

The if statement is an example of a __________.

1. a. sequence structure
2. b. decision structure
3. c. pathway structure
4. d. class structure

Program Description Answer

One of the example of decision structure is “if” statement.

Hence, the correct answer is option “B”.

Explanation of Solution

Decision structure:

Sequence structure cannot handle all types of tasks. These can be achieved using decision structure. Example: “if” statement.

“if” statement:

“if” statement is used to make a decision structure, which permits the program to hold more than one path of execution.

• The indented statement is executed only when the condition is “true”.
• If the given condition is “false”, it skips the indented statements.

Syntax for “if” statement:

if condition:

indented_statement_block

Explanation for incorrect options:

Sequence Structure:

Simplest form of control structure is the “sequence structure”. It is a group of statements that are executed in the order in which they appear.

Hence, the option “A” is wrong.

Pathway Structure:

Pathway structure does not execute the statements under certain conditions.

Hence, the option “C” is wrong.

Class Structure:

Class structure is defined as a hierarchical organization where a community is divided into classes.

Hence, the option “D” is wrong.