The notes indicate there are ER routes labeled ER 1 through ER 6. Which statement is true?

• A. There are six ER routes named ER 1 through ER 6
• B. There are six ER routes named ER A through ER F
• C. ER routes are only for pedestrians
• D. They are not numbered

Answer: (A)

Interpreting how route labels are used helps you quickly verify how many routes exist and how they’re named. If the notes specify ER routes labeled ER 1 through ER 6, that means there are six distinct routes and each is identified by a numeric suffix from 1 to 6. That’s why this statement is true: the labeling shows six routes, and their names include numbers.

Why the other ideas don’t fit: naming with letters would be ER A through ER F, which contradicts the given numeric sequence. The information isn’t about pedestrians or any non-numbered system; the explicit labeling ER 1 through ER 6 shows they are numbered routes.