Final answer:
The best paraphrase according to MLA guidelines is Option B, which rephrases the original idea by mentioning the use of gentle dyes and breaks, thereby ensuring dog welfare in the grooming process.
Step-by-step explanation:
According to MLA guidelines, the best paraphrase for the sentence from the Web article is Option B: "Those who groom the dogs use gentle dyes and let the dogs take breaks (Furmore)." This paraphrase demonstrates an understanding of the original sentence by rephrasing it to communicate the same idea differently, without using the same structure or words. It articulates that extreme dog groomers ensure the well-being of the dogs by using gentle products and giving the animals sufficient rest. This paraphrasing effort serves the purpose of incorporating source material into your writing without directly quoting or copying the original text.