Compliance is termed as the situation when the individual switches the behavior in response to another person.
On the other hand, obedience is termed as the situation when the individual changes the behaviour as a result of the command of the authority or the head over the place.
The correct option is:
B. the presence of at least one conflicting opinion in the group.
This is the correct answer because it states the psychology regarding the individual in the phenomena of compliance and the obedience in the person or the group.
The factors of obedience and compliance get decrease or decline in the group when the group consists of the presence of any one person that deteriorates the values in the group.
To know more about the factors that are responsible for decreased compliance and obedience in groups, refer to the link below: