Final answer:
Rita's approach to composing emails to Trevor should be professional, polite, and well-written, avoiding familiarity, jokes, and sarcasm.
Step-by-step explanation:
Rita's approach to composing emails to Trevor should be professional, polite, and well-written. She should use standard spelling, punctuation, and capitalization to convey respect to her recipient. It is important to avoid being too familiar, making jokes, or using sarcasm as these can be easily misconstrued in written communication. Additionally, Rita should consider the content of her emails, ensuring they are well-received by Trevor, and only use email for appropriate communication purposes.