Which option shows misuse of professional knowledge?

Correct answer: Misleading customers using knowledge

Direct answer: Option B is correct. Professional knowledge is valuable only when used honestly and responsibly. Misleading customers by using specialised knowledge is misuse because the manager deliberately creates a false impression and takes unfair advantage of the customer’s lack of knowledge. Option A is wrong because using knowledge to design a safe process protects people and shows responsible professionalism. Option B is correct because deception violates honesty and professional ethics. Option C is wrong because improving training uses knowledge constructively and benefits workers or the organisation. Option D is wrong because better decisions are a proper purpose of knowledge, especially when they consider facts, risks and stakeholder interests. The key test is the purpose and effect of the knowledge: service and safety are ethical; deception and exploitation are not. Exam cue: knowledge becomes professional only when joined with responsibility and honesty.