A polypeptide when treated with trypsin yielded the following fragments:

(AM) (SAK) (YMPLWGIR)

The same polypeptide treated with chymotrypsin yielded the following fragments:

(MPLW) (GIRAM) (SAKY)

Which of the following displays the original sequence of the polypeptide?

Which of the following describes the unfolded protein response?