What is the role of chymotrypsin in protein sequencing?

Chymotrypsin cleaves peptide bonds at the amino side of methionine residues.

Chymotrypsin cleaves peptide bonds at the carboxyl side of aromatic amino acids.

Chymotrypsin cleaves peptide bonds only at the N-terminal end of the protein.

Chymotrypsin cleaves peptide bonds randomly throughout the protein.