Annmarie's Grades in School Have Never Been Affected by Her

Multiple Choice

Annmarie's grades in school have never been affected by her father's multiple job transfers. However, when the family moves from Michigan to Texas between her sophomore and junior years of high school, Annmarie's grades drop significantly. In ecological systems theory, this move represents a change in her

A) chronosystem.
B) mesosystem.
C) microsystem.
D) macrosystem.