Distinguish Essential from Marginal - Answer Sheet:

Scenario A:

Marginal 1)
Essential 2)
Essential 3)
Essential 4)
Essential 5)
Essential 6)
Essential 7)
Essential 8)
Essential 9)
Essential 10)
Essential 11)
Marginal 12)
Marginal 13)
Marginal 14)
Marginal 15)

Scenario B:

Essential 1)
Marginal 2)
Essential 3)
Essential 4)
Essential 5)
Essential 6)
Marginal 7)
Essential 8)
Essential 9)
Essential 10)
Essential 11)
Essential 12)
Essential 13)
Marginal 14)
Marginal 15)

Scenario C:

Marginal 1)
Essential 2)
Essential 3)
Essential 4)
Essential 5)
Marginal 6)
Essential 7)
Essential 8)
Marginal 9)
Marginal 10)
Marginal 11)
Marginal 12)
Essential 13)
Essential 14)
Marginal 15)