Which of the following is false about one's BATNA:

Group of answer choices

a$.)$ BATNA is the measuring stick by which you evaluate any potential agreement

b$.)$ BATNA should be improved upon before you enter any negotiation

c$.)$ BATNA is the greatest source of power in a negotiation

d$.)$ BATNA is what you aspire to in a negotiation

e$.)$ BATNA is your walk$-$away alternative to a negotiation