Answer:
A. Make no change.
Explanation:
According to the given passage, the writer constructed each sentence with grammatical accuracy with no errors whatsoever.
In sentence 8, there is no need to change the pronoun "I" to "me" because it is used correctly.
Also, in sentence 4, the word "chefs" are in a group and there is no need for individual terms like "his/her".
Sentence 2 is correct the way it is.
THe answer is A. Themselves. A reflexive pronoun indicates that the person who is realizing the action of the verb is also the recipient of the action.