How can you prepare yourself and avoid "the nibble"?

a$)$ Before the negotiation, ask for a few tradables to offset the upcoming nibble technique.

b$)$ After the negotiation has been settled, ask whether there are any extras you need to know about.

c$)$ Before starting the negotiation, ask whether there are any extras you need to know about.

d$)$ About halfway through the negotiation, ask whether there are any extras you need to know about.