Final answer:
The sentence punctuated correctly is B. I would like to buy a table, and a desk, and a chair.
Step-by-step explanation:
The sentence punctuated correctly is B. I would like to buy a table, and a desk, and a chair. This sentence uses commas to separate items in a series. Commas should be used before the coordinating conjunction 'and' when listing three or more items. In this sentence, the commas are correctly placed before each item in the series: 'table', 'desk', and 'chair'.