When a train dispatcher transmits a release form verbally, what must the conductor do?

Answer: B — Repeat the bulletin number and confirm the number of messages

When a release is given verbally, the safety check is to confirm you captured the exact instruction. Repeating the bulletin number ensures you’ve heard the correct release, and confirming the number of messages verifies you received all parts of the release. This read-back process creates a clear, verifiable record of the transmission and catches any mis-heard numbers or IDs before you proceed. Signing the release isn’t part of this verbal read-back, and ignoring it or delaying response would be unsafe. Calling back would be used only if there’s a need to verify due to unclear transmission, but the standard action is to read back the bulletin number and confirm the message count.