A. in sequential order
A procedural document explains how to do something. A recipe is considered a procedural document. Directions for building a LEGO spaceship are considered a procedural document. Emergency protocols are considered procedural documents. It is important that these things are written in sequential order. For example, if you were making an apple pie and it first said to put the apples into the pan, you'd be missing the crust as well as the goodness that the apples are mixed with to create the filling.