Question

multiple choice question eliminating some of the opponents alternatives, blaming the opponent for his own actions, and using personally abrasive statements are all part of the unethical negotiating practice known as: o information exploitation o puffery o lies o weakening the opponent

Explanation:

The description given matches the unethical negotiation practice known as "dirty tricks" which can include lying (lies), using flattery in an unethical way (puffery), exploiting information unethically (information exploitation), and trying to weaken the opponent through unethical means. These are all tactics used to gain an upper - hand in a negotiation in an unethical manner.

Answer:

All of the above (assuming there was an "all of the above" option as the behaviors described match the definitions of lies, puffery, information exploitation, and weakening the opponent in an unethical negotiation context). If not, more context about the full set of options is needed.