Mozambique had around 250,000 Europeans in 1974 that made up around 3% of the population. Mozambique was cosmopolitan as it had Indian, Chinese, Greek and Anglophone communities (over 25,000 Indians and 5,000 Chinese by the early 1970s). The white population was more influenced from South Africa. The capital of Portuguese Mozambique, Lourenço Marques (Maputo), had a population of 355,000 in 1970 with around 100,000 Europeans. Beira, Mozambique had around 115,000 inhabitants at the time with around 30,000 Europeans. Most of the other cities ranged from 10 to 15% in the number of Europeans, while Angola (Portugal) cities had European majorities ranging from 50% to 60%.
Question: How many different ethnic communities did Mozambique  have in the 1970s?
Answer: 4