Thomas is a teenager who lives with his parents in an American city. During one of his high school years, Thomas's house gets destroyed in a fire, forcing his family to relocate to a rural area. According to Paul Baltes, this incident is likely to affect Thomas's development and life and is most likely an example of a .A) normative history-graded influence.
B) nonnormative life event.
C) minority influence.
D) cohort effect.