Rita is concerned about using the correct pronoun in a letter. The difference lies in the use of 'who' or 'whom' based on their functions.
Rita is trying to understand the interrogative pronoun regarding the use of 'to who it may concern' or 'to whom it may concern' when writing a letter to a local distributor. The
difference lies in the correct use of 'who' or 'whom' based on their function in the sentence.