Which code should you insert at line 03?

You are creating a console application named App1.
App1 will validate user input for order entries.
You are developing the following code segment (line numbers are included for reference only):

You need to complete the code segment.
The solution must ensure that prices are positive and have two decimal places.
Which code should you insert at line 03?

A.
Option A

B.
Option B

C.
Option C

D.
Option D

Explanation:
* Regex.IsMatch Method (String, String)
Indicates whether the specified regular expression finds a match in the specified input string.
Syntax:
public static bool IsMatch(
string input,
string pattern
)