Which of the following statements about regular expressions is true.
A) The set of braces containing two numbers, {n,m}, matches between n and m occurrences (inclusively) of the pattern that it quantifies.
B) All of the regular expression quantifiers are greedy; they'll match as many occurrences of the pattern as possible until the pattern fails to make a match.
C) If a quantifier is followed by a question mark (?), the quantifier becomes lazy and will match as few occurrences as possible as long as there is a successful match.
D) All of the above.

Question

Quizplus · Accepted Answer

A is true - the {n,m} quantifier specifies a range of occurrences for a pattern.
B is true - all regular expression quantifiers are greedy by default, meaning they will match as much as possible.
C is true - adding a ? after a quantifier will make it lazy, matching as little as possible while still allowing for a successful match. 
Therefore, all of the statements are true (choice D).

Which of the Following Statements About Regular Expressions Is True