They spent a huge amount of time and money to deal with that small problem and it's like taking a sledgehammer to crack a ...... (*) pea (*) bean (*) nut (*) seed
This is a companion discussion topic for the original entry at https://english.best/questions/4573,they-spent-a-huge-amount-of-time-and-money-to-deal-with-that-small-problem-and-its-like-taking-a-sledgehammer-to-crack-a-___/