The group move towards a goal.
a.
social roles
b.
individual roles
c.
leadership roles
d.
task roles

Individual roles! It is the groups individual effort to complete the task at hand. Not necessarily a leader because the leader wouldn't be able to complete the task at hand alone, therefore it is the groups individual effort.

The answer is d) task roles

Task roles are key for understanding the use they turn to be in order to accomplish goals set as a group. There are many task roles, and someone can act in several roles, for example, a leader o a group of persons can engage in a project and determine how to move onwards.

Task roles do not limit to a single person yet is usually the task Leader is a person that helps a group to focus on the primary objectives by setting a specific agenda, controls the participants and communication between the group’s members, evaluates new ideas as well as contributions of participants involved.

Some other task roles: Information Gatherers, helped by Opinion Gatherers, The Devil’s Advocate, together all they account for orienting the group towards a goal as a unity.

on these days , humidity is very f.) high

new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.