Which group discussion technique is best illustrated by the following statement? the article says that even the tiniest vibrations can ruin the outcome of the procedure. so that means if they had this device that eliminates vibrations from the instruments, they would be more successful.
a. synthesizing various ideas
b. establishing a focus
c. supporting ideas with evidence
d. refuting a claim

B. Establishing a focus

Explanation:

Establishing a focus can be the best group discussion technique to eliminate vibrations that ruin the outcome of the procedure. Only synthesizing various ideas cannot make a group discussion successful. It needs first to establish a focus on the main topic. Then the group members can introduce supporting ideas with evidence. A member can refute an idea if considered irrelevant or unacceptable in the context of the focusing topic. Thus, it helps to avoid all sorts of vibrations if it establishes the topic. All the members then participate in the discussion and discuss focused topic relevantly. Hence, establishing a focus is the best group discussion technique.  

a pirate walks into a bar with a steering wheel sticking out of his pants.

bartender: isn't that uncomfortable?

pirate: arrgh! it's drivin' me nuts!

the correct answer is: d