Answer:
A
Explanation:
ECM proteins are significant in the development of the extracellular matrix which is responsible for supporting and connecting cells together in the formation of tissues. The extracellular matrix is also a major component of connective tissue that is composed of collagen fibers connecting tissues. Mutations of these proteins will result in connective tissue disorders such as scurvy, sarcomas, systemic lupus erythematosus (SLE) and etcetera.
