A Psychologist at a British University Wishes to Understand the Psychological

A psychologist at a British university wishes to understand the psychological impact that a new disease outbreak is having on the mental health among residents in London. In order to develop robust research questions, she must first:

A) speak to her colleagues.
B) develop questions based on her expertise.
C) conduct a rigorous review of existing research.
D) read a book about disease outbreaks.