The correct answer is C. 3 parts oil, 1 part of vinegar
Step-by-step explanation:
A vinaigrette is a type of salad dressing that is the result of mixing oil and vinegar or an acid substance, for example, lemon. Additionally, vinaigrettes commonly include salt, spices or similar to add flavor. In terms of ingredient ratios, the general ratio for vinaigrette is 3:1 which means you use three parts of oil and 1 part of vinegar. For example, you can make a vinaigrette by mixing 30 milliliters of oil and 10 milliliters of vinegar or lemon considering 10 milliliters is equivalent to one third (1/3) of 30 milliliters. According to this, the one that is the typical ingredient ratio for making a vinaigrette is 3 parts oil, 1 part of vinegar.