Which of the following statements adds a new property named square Feet to an object named Real Estate? a. var RealEstate.squareFeet; b. RealEstate.squareFeet = ""; c. var squareFeed.RealEstate; d....

Which of the following statements adds a new property named square Feet to an object named Real Estate?

a. var RealEstate.squareFeet;

b. RealEstate.squareFeet = "";

c. var squareFeed.RealEstate;

d. squareFeet.RealEstate = "";

A property whose value is itself an object is known as a(n)

a. sub-property

b. instance

c. constructor

d. sub-object