Final answer:
72, 'A', "Hello World," 2.8712 are all examples of characters and strings.
Step-by-step explanation:
The examples given, such as 72, 'A', "Hello World," 2.8712, are all examples of characters and strings.
Characters are a type of data that represents a single symbol, such as a letter, number, or punctuation mark. 'A' is an example of a character.
Strings are a sequence of characters enclosed in quotation marks. "Hello World" is an example of a string.