The correct answers are:

Strong values maximise conflict within an organisation

and

Strong values are dangerous if they filter out 'uncomfortable' environmental information

Rationale: This is a problem with strong cultures (and ultra-cohesive groups).

Pitfalls: The other statements are plausible: you need to come up with counter-arguments to show that they are not always true. 'Strong values can replace rules and controls in an organisation' is most plausible because it makes a limited claim that values 'can' replace rules: think of health and safety or financial controls, however, to disprove the claim.

Ways in: You could rule out two of the statements because they are dogmatic (so that just one counter-example would make them untrue).