Cohesiveness of a group will increase if:

a. the group hasn't experienced prior successes.
b. admission into the group is more difficult to obtain due to various barriers or high criteria.
c. members perceive that an internal force may prohibit the group from obtaining its goals.

b. admission into the group is more difficult to obtain due to various barriers or high criteria.    

Explanation:

Group cohesion: In social psychology, the term "group cohesion" is described as one of the different social processes that distinguish different groups whose members tend to interact with each other and signifies forces that push these group members intact with each other. However, a lot of people are working together in a group to accomplish a specific task and experiences bad as well as a good experience.

In the question above, the correct answer is b.

answer: cannibalism, the capac raymi, capacocha, the eight day feast, the combing of the hair

explanation:

the incas have many rituals, cannibalism was always a very ritual thing, which was normally tied to sacrifices, warfare, death, and regeneration.

  the capac raymi was one of the most important ceremonies. it occurred around the summer solstice and was when they worshiped their sun god, also known as inti.

  the capacocho was another one of their most important ceremonies. it was when many children where selected to start their training, and these children where destined to become sacrificial blessings to their sun god, inti. being chosen for this ritual was a blessing.

  the eight day feast was a feast that lasted 8 days and, each day, the day began with a chanting at dawn. a follow up song at noon. which ended with complete silence at the end of the day. on this day, inca royalty was always dressed in silver and gold laced clothing.

  the combing of the hair was the most important ritual to young girls. this ritual was known as the coming of age ceremony, but only the most beautiful girls where chosen. in this ceremony, the girls chose their new name and where chosen as either brides, or princesses of rulers.

it brings together the military and civilian sectors of society to harness the total power of the nation. it is the mechanism that facilitates the successful prosecution of any conflict.it brings together the military and civilian sectors of society to harness the total power of the nation. it is the mechanism that facilitates the successful prosecution of any conflict.