Nadia has cancer and has come to believe that she can heal herself holistically regardless of what her family and doctors say. she has found support for her views in various internet discussion groups. these group discussions have strengthened her views becauseof:
a) groupthink.
b) social loafing.
c) group polarization.
d) diffusion of responsibility.

(C) Social loafing

Explanation:

Social loafing is the concept that people are prone to exert less effort on a task if they are in a group versus when they work alone. The idea of working in groups is typically seen as a way to improve the accomplishment of a task by pooling the skills and talents of the individuals in that group as also seen in the case of Nadia.

The answer is A) Groupthink.

Explanation:

Groupthink occurs when a group of people looks for consensus among its members without carefully analysing the possibilities. It tries to avoid conflict and in doing so irrational decision-making may occur.

Not only has this phenomenon influence in psychology, but also in sociology and politics.

the correct answer is modern american cars are not available due to trade restrictions.

trade between cuba and the united states have serious restrictions. the u.s. imposed an economic embargo on cuba, that among other things means that modern american cars are not available due to trade restrictions.

in response to some governmental actions of the authorities from cuba, president john f. kennedy proclaimed an embargo on trade between both countries in february 1962. the trade embargo remains active until this day and was implemented directly by the departments of commerce and the department of treasury.

in president trump’s administration, there is a national security presidential memorandum that "strengthens the policy of the u. s.", affecting trade with cuba.