The argument concludes that the company should replace its monetary bonus policy with a non-monetary reward (dinner with senior executives), based on a study claiming that non-monetary incentives are more effective at motivating employees.
To weaken this argument, we need to find a choice that casts doubt on whether the dinner incentive will actually be more effective than the monetary bonuses — either by questioning the relevance of the study to the new policy or by pointing out negative consequences of the switch.
Let’s evaluate the answer choices:
(A) The study did not specifically examine the motivational effects of dinner incentives.
This weakens the argument.
The argument relies on the study’s support of non-monetary incentives to justify this specific non-monetary incentive (dinner).
If the study didn’t evaluate dinner as an incentive, then it's unclear if this specific reward is actually effective — undermining the decision.
Strongest answer.
(B) Senior executives who attend the dinner often receive a thank-you note from the employees afterward.
This is irrelevant to whether the incentive motivates employees.
It reflects employee politeness or gratitude but doesn’t show that the dinner works as a motivator.
Does not weaken.
(C) The company in the study did not have any monetary reward policies in place before the research was conducted.
This is somewhat relevant, but indirect.
It might imply that the study's context differs from the company’s — which could weaken the generalization — but it’s a weaker critique than (A), which directly questions the relevance of the study to the new incentive.
Mildly weakens, but not as much as (A).
(D) Non-monetary incentives are generally more cost-effective for companies than monetary incentives.
This supports the change (more cost-effective), not weakens it.
But cost-effectiveness isn’t the focus — employee motivation is.
Strengthens or irrelevant.
(E) Employees who have received monetary bonuses in the past may resent the change to the dinner incentive.
This potentially weakens the policy by introducing a morale issue.
But it doesn’t directly challenge whether the new incentive is less effective, just that some employees might be unhappy.
Possible weakening, but more about employee satisfaction, not incentive effectiveness.
Correct Answer: (A) : Because it directly challenges the validity of applying the study’s conclusion to the company’s new dinner-based policy.