It is important to note that the term "ethnicity" can be complex and controversial, particularly in North Africa where there is a diverse mix of cultural, linguistic, and historical influences. However, based on commonly used demographic categories, the answer to the question is:
C. Moroccan
Morocco is a North African country with a population of around 37 million people. According to the World Population Review, about 99% of the population is Arab-Berber, which is considered to be the dominant ethnic group in North Africa. Other ethnic groups in Morocco include sub-Saharan African, Jewish, and European. Therefore, it can be inferred that about half of the inhabitants of North Africa are of Arab-Berber ethnicity, which includes Moroccan people.