Rohini tells you that she once thought that the dishwasher hated her and wanted to eat her. In fact, she said that she felt that the machine was alive. At the time, Rohini was a normal four-year-old and was not mentally disturbed. According to Piaget, Rohini, at that time was probably in which stage of cognitive development

Preoperational

Explanation:

Preoperational stage is the phase of development that occurs in between between the age of two and seven years. This involves them using signs and symbols to pass their messages across.

They are mentally okay but lack logic or ideas in explaining certain scenarios. This is why the child thought that the dishwasher was alive, hated her and wanted to eat her.