All purchases originate from one office in a(n) _____ buying organization

A broker used the following clause in his exclusive listing contract, "In consideration of the execution of the foregoing, the undersigned broker agrees to use diligence in procuring a purchaser." This clause:

A: Is superfluous and unnecessary in current contracts; B: Is necessary for the creation of a unilateral contract; C: Is important to the creation of a bilateral contract; D: Requires that the broker advertise the property.

When preparing a presentation, speakers should begin by inventorying their own level of knowledge

Indicate whether this statement is true or false.