Single/multi-choice problem: Which of the following solutions is better for the following goal:
What is a good way to clean a metal necklace?

Choose your answer from:
(a). In a small bowl, combine 2 parts baking soda and 1 part water to make a paste. ... Dip a soft-bristled toothbrush into the mixture. ... Gently scrub your jewelry with the toothbrush. ... Plug the sink, then rinse the jewelry using warm water. ... Gently pat the jewelry dry with an abrasive rag.;
(b). In a small bowl, combine 2 parts baking soda and 1 part water to make a paste. ... Dip a soft-bristled toothbrush into the mixture. ... Gently scrub your jewelry with the toothbrush. ... Plug the sink, then rinse the jewelry using warm water. ... Gently pat the jewelry dry with a soft towel.;
(b).