When turning or changing lanes, you must:

1. Always signal your intentions, even when no visible traffic is present. ✓
2. Signal only if there is visible traffic.
3. Signal only when driving at night.
4. Signal only when driving in heavy traffic at night.

Answer: A. Always signal your intentions, even when no visible traffic is present.

You must always signal your intentions when turning or changing lanes, even if you see no traffic around you.

Why this is the answer

The Florida handbook says you must use turn signals or hand signals to let other drivers know you are turning, and that signals are required by law when you change lanes or overtake. It does not make the signal depend on whether traffic is visible, so the rule applies every time you turn or switch lanes. Signaling in empty-looking situations is how you stay predictable to drivers you may not have noticed.

Why the other answers are wrong

• B. Signal only if there is visible traffic. — The handbook ties signaling to the turn or lane change itself, not to whether you happen to see other vehicles, so waiting until traffic appears is wrong.
• C. Signal only when driving at night. — Nothing in the handbook limits turn or lane-change signals to nighttime driving; the signal requirement applies whenever you turn or change lanes.
• D. Signal only when driving in heavy traffic at night. — The handbook gives no exception for heavy traffic at night, so restricting your signals to that narrow situation is wrong.

Remember it

Think of the signal as part of the turn itself, not as a message for a specific car you can see.