Which statement about texas class a basics is correct?

1. This statement confuses the tested combination-vehicle rule with an unrelated CDL topic.
2. This answer would create an unsafe coupling, braking, turning, or inspection habit.
3. This choice is not supported by the Texas CDL handbook or FMCSA combination-vehicle standards.
4. FMCSA directs drivers to use their state CDL manual, so Texas applicants should study the Texas CMV Drivers Handbook.