To prepare the entree, the chef mixed olive oil chicken and vegetables.
Which of the following CORRECTLY punctuates the above sentence?

"To prepare the entree, the chef mixed olive oil, chicken, and vegetables." This answer is correct because commas must separate the three ingredients being mixed.
"To prepare the entree, the chef, mixed olive oil chicken and vegetables." This is incorrect because there are no commas to separate the items being listed.
"To prepare the entree, the chef mixed, olive, oil chicken and vegetables." This is incorrect because there should not be a comma separating the verb ‘mixed’ and the adjective ‘olive’. Additionally, there should not be a comma separating the adjective ‘olive’ and the noun ‘oil’.
"To prepare the entree, the chef mixed olive oil chicken, and vegetables." This is incorrect because there should be an additional comma placed between the nouns ‘oil’ and ‘chicken’.