Develop a C# program that will determine the gross pay for each of several employees. The company pays "straight-time" for the first 40 hours worked by each employee and pays "time-and-a-half for all hours worked in excess of 40 hours. You have a list of the employees of the company, the number of hours each employee worked last week, and the hourly rate of each employee. Your program should input this information for each employee, and should determine and display the employee's gross pay. Finish the process when enter a negative hours worked. In addition, obtain the Total Salary, the Average Salary and the workers that works more than 40 hours and print the results. Select the most appropriated loop for this problem