Help me with my Human Relations homework!! just 4 questions....?

Question

I've pulled my hair out over these 4 questions!!
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What is the most appropriate group technique to use to generate alternative solutions?
1. The department is suffering from morale problems. (the answer is NOT "e")
2. The supervisor must decide on new furniture for the office. (the answer is NOT "a")

POSSIBLE ANSWERS for 1 & 2:
a. brainstorming
b. synetics
c.nominal grouping
d. consensus mapping
e. Delphi techique
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Select the leadership style for the following situation:
3. (use the time-driven model) Things are going ok in your dept., but you know performance could be better. The dept. members are knowledgeable, have + work norms, & work well together. You're thinking about having a 1-time brainstorming session. You've never led one.
(answer is NOT "a")
4. (use the development driven model) You work in purchasing and have to buy 5 new cars for the sales staff, within a budget. (answer is NOT "c")

a. decide
b. consult individually
c.consult group
d. facilitate
e. delegate

Answer 1

1-C
2-D
3-E
4-B
If you need explanations just ask.

Answer 2

Stop asking people for answers and learn something for yourself.