Which of these is NOT a weakness of the one-party system?

1. The question asks for the odd one out: three weaknesses and one strength. 2. Lacking checks and balances, discouraging alternative opinions and operating without opposition are all criticisms of one-party rule. 3. Promoting national unity by minimising conflict is instead an advantage claimed for the system. 4. So that is the option which is not a weakness. 5. Candidates who read the question as asking for a weakness picked one of the other three, which the report records as the main error here. _Source: NECTA CSEE 2023 History 012, Question 1: Multiple Choice Items, item (vi)_