The correct answer is 1
Social psychology addresses the relationships between members of a social group, so it is on the border between psychology and sociology. It seeks to understand how man behaves in his social interactions. For some scholars, however, the comparison between Social Psychology and Sociology is not that simple, as both constitute independent fields, which start from different theoretical angles. There is, therefore, a considerable distance between the two, because while psychology highlights the individual aspect, sociology sticks to the social sphere.
What Social Psychology does is to reveal the degrees of connection between the being and the society to which he belongs, deconstructing the image of an individual opposite to the social group. A basic postulate of this discipline is that people, however diverse they may be, present socially different behavior from what they would express if they were isolated, because immersed in the mass they are imbued with a collective mind.