Violation

What is the correct sequence of events

Elongation of enamel epithelium, differentiation of odontoblast, dentine formation then enamel formation.

Differentiation of odontoblast, dentine formation then enamel formation, elongation of enamel epithelium.

Differentiation of odontoblast, elongation of enamel epithelium, dentine formation then enamel formation.

Please describe the matter of abuse