need this code to be solved within 20 min please Write a C# program which has the following properties. a) An abstract E

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need this code to be solved within 20 min please
Write a C# program which has the following
properties.
a) An abstract Employee class and it contains a private data
field EName. A
constructor that creates an Employee with a specified name. A
public property
class member is named as PropertyEName. Define the set and get
accessors of
property to retrieve and assign the values respectively. Outside
class can call the
property to access the private field EName. In addition, an
abstract method named
salary that returns the salary of the Employee as a long type.