It is often difficult to get measures of anxiety during competition of interacting sport teams (e. g., soccer, basketball). Another way to get some information about anxiety states during competition is to use:.a. physiological measures like heart rate.
b. retrospective measures.
c. prospective measure.
d. brain waves.
e. none of these.

The answer is B). Retrospective measure

Explanation: A retrospective measure is performed a posteriori, using the information on events that have taken place in the past. A cohort of individuals that share a common exposure factor is compared with another group of equivalent individuals not exposed to that factor, to determine the factor's influence on the incidence of a condition. This way would be another way to assess the anxiety of the sport teams in the competition.

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.