Connective tissue is best described by the statement: A) usually contains a large amount of matrix.
The reason for this is that connective tissue is characterized by its extensive extracellular matrix, which provides support and structure to the tissue. Unlike epithelial tissue, which is tightly packed with little space between cells, connective tissue has a significant amount of matrix that can include various fibers, proteins, and ground substance. This matrix is crucial for the functions of connective tissue, which include providing support, binding other tissues together, and storing energy. The other options do not accurately reflect the primary characteristics of connective tissues.