Newborns appear to be able to recognize the voices of both their mother and father

Suppose that a professor asks the students in her class to say their names out loud (one at a time) on the first day of class. Then she asks them to write down as many of their classmates' names as they can recall

Then she constructs a graph that shows "Number of correct responses" on the Y-axis and "Serial position of the name" on the X-axis. The shape of the graph a. will be a straight line, with the greatest accuracy on the first items. b. will be a straight line, with the greatest accuracy on the last items. c. will be an upside-down U-shaped line, with the greatest accuracy on the middle items. d. will be a U-shaped line, with the greatest accuracy on the first and last items.

According to Erikson and Marcia, what exactly does it mean to have an "identity crisis"?

What will be an ideal response?