Branch managers of First Federated Savings and Loan received this e-mail message: Please inform all personal that management retains the right to check personal belongings of employees before employees leave the bank. What error did the writer make? Group of answer choices A grammatical mistake A proofreading error A failure to use spell check No error was made. The sentence is correct as written.

B). A Proofreading error.

Explanation:

As per the question, the error made by the writer in this e-mail message is the 'proofreading error' which implies that he didn't recheck his message for grammatical, word choice, formatting, or spelling errors. The proofreading helps in fixing these errors before finalizing it that aids to enhance the comprehension, accuracy, and compactness of the work. The given message contains various errors like prepositional errors(lack of preposition before 'personnel'), use of wrong spelling of 'personnel', the punctuation errors, etc.. Therefore, option B is the correct answer.