What should you do?

You define the following regular expression of currency values:
regex tx = new regex(“^-?d+(.d{2})?$”)
You are required to write code that will be used to find whether a string in the variable named Bill matches the regular expression or not. You are also required to use this code as the expression in a conditional statement and need to know which code segment to use.
What should you do?

A.
The tx.Matches(Bill)

B.
The tx.Equals(Bill)

C.
The tx.Match(Bill)

D.
The tx.IsMatch(Bill)

Explanation:
In order for you to successfully indicate whether the regular expression finds a match in the input string
you should make use of the IsMatch(Bill) segment in the scenario.
Incorrect Answers:
A: This segment should not be used in the scenario because the Matches method is used to search an input string for all occurrences of a regular expression and returns all the successful matches.
B: This segment should not be used in the scenario because this method is used to determine whether any two Object instances are equal.
C: This segment should not be used in the scenario because the Match method is used to search an input string for an occurrence of a regular expression and returns the precise results as a single successful match.