Assume that you have an object of the Object type named employee. Assume also that this object only has two properties named firstName and lastName. What does the following code do?

employee.streetAddress = "123 Main Street";

a. It adds an event named streetAddress to the employee object

b. It adds a property named streetAddress to the employee object

c. It causes an error because no property named streetAddress exists for the employee object

d. It adds a method named streetAddress to the employee object