Which of the following was an important development that characterizes the Neolithic Era?

The recognition of harmonious coexistence of diverse cultural groups in a society is called multiculturalism.

Multiculturalism makes reference to the co-existence of different cultures, that is to say the co-existence of different religions, customs, ethnic groups and ideologies, within the same nation. The idea of multiculturalism implies that individuals do not need to give up their cultural identities in order to share a dialogue with other individuals that do not have the same cultural values because all cultures are unique and special. 'Cultural pluralism' can function as a synonym of 'multiculturalism'.  

The correct answer is B) He stopped the Muslim advance from Spain to France.

The impact that Frankish leader Charles Martel had on the Christian Europe’s relations with Muslim Spain in the 8th century was that he stopped the Muslim advance from Spain to France.

In the Battle of Tours of 732, Charles Martel who was the ruler of the Frankish territories defeated the Muslims invaders that wanted to occupy Spain. The battle was also known as the Battle of Poitiers because it was fought in a place in the middle of Tours and Poitiers. With that victory, Charles Martel avoided the occupation of the Muslim Army in Western Europe and the spread of Islam in that region.  

Answer:

Option C. both secret deals and few laws passed.

Explanation:

The amount of corruption resulted in the government shrinking from public accountability. This means that the government was not transparent with its people. In addition, the government engaged in secret deals and imposed several laws without appropriate consultations.