All of the following are among ground rules that have proven widely useful to project teams except:
a. develop trust by doing work as promised and being truthful
b. avoid conflict at all costs
c. use data when possible and gather facts rather than arguing over opinions
d. always consider at least two alternative approaches before proceeding

Avoid conflict at all cost.

Explanation:

(a) develop trust by doing work as promised and being truthful : for a project involving a team to successful, trust among members of the team is essential, sincerity is key. Promises made should be kept and the right figures should be used at all times to ensure success.

b. avoid conflict at all costs : Not all forms of conflict in a project work is bad. Conflict can lead sometimes to members of a project team to understand themselves better and new ideas are raised on how to move a project forward.

c. use data when possible and gather facts rather than arguing over opinions: facts finding and analysis of facts is essential in every project. Argument sometimes are carried out to decide which line of action is best to take.

d. always consider at least two alternative approaches before proceeding: all the possible ways to carry out a task is essentially considered in order to know the best path to follow in a project.

answer; common market;