The correct option is C Elastin fibres
Mummies are embalmed corpse either of human or animal. The skin and organs of mummies are preserved in such a way that the recovered body does not decay further if kept in cool and dry conditions. while creation of mummies have been anthropogenic or spontaneous, studies of the areolar connective tissue cells have shown to contain elastin fibres. Elastin is a body protein which is more resistant of all against any chemical changes and body proteins. Hence, arteries of mummies are preserved due to the presence of elastin fibres.