I think it would be 3-anagnorisis because he discovered that he unknowingly killed the King/his biological father (who in the myth knew he would be killed by his son while the son married his mother) and swore before that, that if he ever found the murderer of the late king, he would stab out their eyes. The queen, when she discovered it, was overwhelmed by grief and suicides in the myth<span />
The author's purpose in this passage is to inform. The author is informing the reader on how Elizabethans would typically store their food. It goes into details of differences between food types and some options for storing food and getting nourishment in summer and winter.