Explanation:
- Extracellular material refers to the substances that are present outside the cells in a tissue or organ.
- It includes substances like fibers, ground substance, and fluid.
- The quantity of extracellular material varies in different tissues and organs.

Comparing the given options:
a) Striated muscle: Striated muscle tissue is composed of muscle fibers that are tightly packed together. The extracellular material in striated muscle tissue is primarily composed of collagen fibers and other connective tissue components. However, the quantity of extracellular material in striated muscle is relatively low compared to other tissues.

b) Areolar tissue: Areolar tissue is a loose connective tissue that is found in various parts of the body. It contains a significant amount of extracellular material in the form of ground substance, which is a gel-like substance that surrounds the cells and fibers. Areolar tissue also contains collagen and elastic fibers. The loose arrangement of fibers and abundant ground substance contribute to the high quantity of extracellular material in areolar tissue.

c) Stratified epithelium: Stratified epithelium consists of multiple layers of cells. The extracellular material in stratified epithelium is minimal as the cells are closely packed together, and there is minimal space between them.

d) Myelinated nerve fibers: Myelinated nerve fibers are specialized structures involved in transmitting nerve impulses. The extracellular material in myelinated nerve fibers is limited, as the focus is primarily on the axon and the myelin sheath surrounding it.

Conclusion:
Among the given options, areolar tissue contains the largest quantity of extracellular material. This is due to the loose arrangement of fibers and the presence of abundant ground substance in this type of connective tissue.