In which year was gross profit (revenue − costs) the largest?

Derive the asked-for quantity for every row first, then locate the best one — the row that wins on a raw column is the trap. The correct answer is 2023. Traps to avoid: 2020 comes from the "highest costs" error; 2022 comes from the "lowest revenue" error; 2019 comes from the "lowest profit" error; 2021 comes from the "highest revenue not profit" error.