Fibronectin is a protein, and all proteins share some of the steps to their formation.
First, the DNA needs to be transcribed to produce mRNA, then the mRNA is translated in the ribosomes, where the amino acids line up in order and form a chain, and this chain is what we call a protein.
Given the options on this question, the correct would be:
D. DNA is transcribed.
E. Amino acids line up
B. Bonds are formed between the amino acids
A. Fibronectin is produced.