Which sentence uses commas correctly? a. tofu, rice, and vegetables are foods commonly eaten in china, japan, and vietnam. b. tacos require meat, cheese, lettuce, and, salsa. c. china's pandas live in the mountains eat bamboo and do not hibernate. d. maples, oaks and, elms are trees that lose their leaves.

A. Tofu, rice, and vegetables are foods commonly eaten in China, Japan, and Vietnam

^^^This is the correct answer because commas are needed when there is a list of items

Below I have to original sentence of the choices that are incorrect then the corrected version so you can see how they should be written:

B. Tacos require meat, cheese, lettuce, and, salsa. >  B. Tacos require meat, cheese, lettuce, and salsa.

C. China's pandas live in the mountains eat bamboo and do not hibernate. >  C. China's pandas live in the mountains, eat bamboo, and do not hibernate.

D. Maples, oaks and, elms are trees that lose their leaves. > D. Maples, oaks, and elms are trees that lose their leaves.

Hope this helped!

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explanation: