Final answer:
The octave section of 'Sonnet 75' is used to pose a problem.
Step-by-step explanation:
The octave section (first eight lines) of Spenser's 'Sonnet 75' is used to c. Pose a problem. Conventionally, the octave introduces a problem or question which the sestet then resolves. This question sets the stage for the remainder of the sonnet and creates tension and anticipation for the resolution that follows.