It sounds like you're exploring a scenario or a quiz involving the Power Rangers! If the question is "how many workers?" and you're given the options of 20, 50, or 1,000, I'd suggest choosing based on the context of the challenge or mission being referenced.
If you're looking for a choice that seems more intimidating and fitting for a villain's operation against the Power Rangers, 1,000 would be a more dramatic choice. However, if it's a smaller scale operation, maybe 20 or 50 could be more realistic. What's your thought on it?