According to the text, the Swedish Academy is an institution...

Letra C correta, de acordo com a frase entre as linhas 26 e 29.

c) is in a continuous process of renewal.

The laureate prize it bestows upon writers they deem to worthy hasn't met any everlasting criterion since its inception, so it can be said that its foundation and principles are ever changing. Some of the criteria, according to contents to be found in the text, seem to overlap and there was a common ground found during some time periods, but overall it's too shifty.

L26-29:The consecutive phases in that history reflect the changing sensibility of an Academy continuously renewing itself.