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Comma before 'like' - English Language & Usage Stack Exchange
The third example is confusing. Is it a) Metaheuristics, like particle swarm optimization, evolutionary algorithms, and memetic algorithms, are used in the literature to solve the optimization problem, or, b) Metaheuristics are used in the literature, like particle swarm optimization, evolutionary algorithms, and memetic algorithms, to solve the optimization problem, or, c) Metaheuristics are ...