Sentence diagramming prepositional phrases

The pilgrims are at in the beginning of the prologue.

Which of the following is the original meaning of the word college? a. an independent institution of higher learning offering a course of general studies leading to a bachelor’s degree b. a building used for an educational or religious purpose c. a group of persons considered by law to be a unit d. a body of clergy, living together and supported by a foundation

How does the author introduces his idea of fish depletion in the first few pages of world without fish?