Final answer:
Continuous bound and continuous lap placket refer to sewing techniques option (a) essential in garment construction and quilting, where fabric edges are neatly finished, contributing to the historical evolution of quilting designs.
Step-by-step explanation:
The continuous bound or continuous lap placket are sewing techniques used in the creation of garments. They are methods for finishing the openings of sleeves, the neck, or the waistband in a way that allows for a clean edge and the possibility of opening the garment partly. This technique is essential in the construction of various clothing items and the craft of quilting.
Quilting has a rich history and has evolved from simple coverlets to more complex patterns and designs. These designs have often mirrored the ongoing trends in visual arts, moving from well-defined, geometric patterns to abstract compositions.
A quilt typically consists of three layers: the top layer with decorative quilting, an insulating material in the middle, and a backing fabric. All three layers are stitched together, and the edges are bound for durability.