Final answer:
The true statement about rating badges worn on peacoats is that they are displayed on the left sleeve, indicating the wearer's rank and job in the U.S. Navy, and are part of naval tradition.
Step-by-step explanation:
The statement that is true about rating badges worn on peacoats is related to the uniforms of the U.S. Navy. Rating badges are worn on the left sleeve of a sailor's peacoat, showing both the wearer's rank (or rate) and their specific job (or rating). These badges are an important part of naval tradition and are a source of pride for service members. The peacoat itself is a dark blue wool coat that is part of the common uniform and is known for its warmth and durability in harsh weather conditions.