Which of the following is also known as yellow fibre?

Yellow fibres are another name for elastic fibres. These are present in the extracellular matrix of connective tissues. 

Protein fibres, specifically collagen fibre, are also prevalent in the extracellular matrix of several connective tissues. The body gains strength from it, and the body components benefit from the cushioning. Reticulin or reticular fibres is a connective tissue that is primarily made of Type III collagen secreted with assistance from reticular cells.