Which statement about texas class a basics is correct?

1. This choice is not supported by the Texas CDL handbook or FMCSA combination-vehicle standards.
2. Failing the combination-vehicle knowledge portion prevents issuance of a Group A CLP or CDL under federal rules.
3. This statement confuses the tested combination-vehicle rule with an unrelated CDL topic.
4. This answer would create an unsafe coupling, braking, turning, or inspection habit.