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单选题
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)


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