Which one of the following contains the largest quantity of extracellular material?
a)	Stratified epithelium	b)	Myelinated nerve fibres
c)	Striated muscle	d)	Areolar tissue

(d)

Loose connective tissue, also called areolar connective tissue, is the ‘packing material’ of the body that anchors blood vessels, nerves and body organs. It contains fibroblasts that synthesize the fibres and ground substance of connective tissue and wandering macrophages that phagocytize pathogens or damaged cells. The different fibres types include strong collagen fibres and thin elastic fibres formed of the protein elastin.