Spot the Odd One Out: Three options describe genuine cooperative principles; one describes a completely different business model — find the mismatch.
Voluntary membership, democratic control, and service motive are all textbook cooperative features. Profit maximization, however, is the defining goal of a PRIVATE/corporate firm, not a cooperative (which exists to serve members, sharing surplus rather than maximizing it).
So 'Profit maximization' is the one that does NOT belong — the correct answer to a NOT question.