Danny is selling his horse, and Cleo is interested in buying it. Danny has initially advertised the horse at a price of $2000, and his aspiration range is $1700 to 1900. Cleo only has $1600 readily available but, realistically, is willing to consider paying up to $1800 if she really likes the horse. The bargaining zone in this situation is:

Select one: a. Negative $100 b. Negative $200 c. None of the answers provided d. Positive $200 e. Positive $100