Answer:a.Naturalist
Explanation:
A naturalist believes that subjects or participants are able to show their original behavior if they are in their natural environment. A researcher would be more likely to get a true presentation of the participants behaviour if they observe them in their natural environment, if they are not aware that they are under observation. People act normal in normal situations but may alter their behaviour in situations when they know they are being watched.
A naturalist will carry those experiments or research that can't not be done in a lab such as this one of observing women in a shelter.
