What is the difference between end-stopped and enjambed lines?

Which example represents a character who develops because of internal conflict? a. a character becomes more confident after she stops questioning her personal decisions. b. a character leaves his hometown to become an actor after his parents pass away. c. a character struggles to stay warm in the winter when a storm knocks out her electricity. d. a character becomes stronger because she is bullied by a group of students in her school.