Answer:
c. The protagonist's "crime" of independent thought, which slowly progressed in Part One, evolved into potentially deadly actions in Part Two.
Step-by-step explanation:
The overall difference between Parts One and Two is that in Part One, Winston's "crime" of independent thought is slowly progressing, but in Part Two, his "crime" evolves into potentially deadly actions as he becomes more involved with the resistance and commits acts of rebellion against the Party. Part Two also focuses more on Winston's relationship with Julia and their attempts to resist the Party's control, while Part One primarily establishes the setting and introduces the characters and themes.