Which sentences from the article BEST represent the article's main ideas?

A
Violence spread in central Durban on Tuesday, after looters attacked shops owned by immigrants, some of whom armed themselves with machetes and knives. The victims are often Somalis, Mozambicans, Ethiopians, Malawians, Pakistanis and Nigerians and other Africans. The king’s spokesman, Prince Thulani Zulu, last week denied that the king’s comments triggered the violence, and condemned those carrying it out.
B
President Jacob Zuma’s eldest son, Edward, chimed in that foreigners were “taking over the country” in a “ticking time bomb.” Then last week, violent attacks on immigrant shopkeepers in Durban townships exploded and have continued since. Mobs looted shops Wednesday in the KwaZulu-Natal city of Pietermaritzburg, and the African Diaspora Forum reported a threat to firebomb a building in the town of Mthatha, in the Eastern Cape, that houses many foreign-owned shops.
C
It began after the Zulu king, Goodwill Zwelithini, told his followers last month that foreigners in South Africa should pack up and leave. Then last week, violent attacks on immigrant shopkeepers in Durban townships exploded and have continued since. Violence targeting immigrant shopkeepers, fueled by hate speech, envy and high unemployment, has dogged South Africa for years, although it is often dismissed by police and government officials as criminal but not specifically aimed at immigrants.
D
“The situation is very tense. There are many foreign nationals who are fearing for their lives. Some of them want to go back to their homes in other countries. I’ve met many people who are worried and don’t know what to do,” said Mkululi White, spokesman for the African Disapora Forum, which represents immigrants in South Africa. President Zuma last week condemned attacks on foreign nationals, adding that his government was taking steps against illegal immigrants, including curbing illegal migration, arresting foreigners involved in crime, and shutting down unlicensed shops.