You are developing a C# application that has a requirement to validate some string input data by using the
Regex class.
The application includes a method named ContainsHyperlink. The ContainsHyperlink() method will verify the
presence of a URI and surrounding markup.
The following code segment defines the ContainsHyperlink() method. (Line numbers are included for reference
only.)

The expression patterns used for each validation function are constant.
You need to ensure that the expression syntax is evaluated only once when the Regex object is initially
instantiated.Which code segment should you insert at line 04?

A.
Option A

B.
Option B

C.
Option C

D.
Option D

Explanation:
RegexOptions.Compiled – Specifies that the regular expression is compiled to an assembly.This yields faster
execution but increases startup time.This value should not be assigned to the Options property when calling the
CompileToAssembly method.
http://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regexoptions.aspx
Additional info
http://stackoverflow.com/questions/513412/how-does-regexoptions-compiled-work