单项选择题

The Italian aid group Emergency has had a tense relationship with local authorities in violence-wracked Helmand Province, due in part to its policy of treating all patients. Afghan officials said they detained three Italian Emergency workers Saturday, a doctor, a nurse and a logistics worker. (10) Afghan officials said they were held as part of an investigation into an alleged plot to kill the governor of Helmand Province. Helmand Province Governor Gulab Mangal said an Emergency staff member received $500,000 as an advance payment for killing him. In total nine people, including six Afghans, were held after explosive suicide vests, hand grenades and other weapons were discovered in the storeroom of the Emergency-run hospital in Helmand’s capital, Lashkar Gah. Emergency founder Gino Strada denounced the detentions of the aid group’s three workers, calling it a mafia-style attempt to silence a witness.

Which of the following is correct according to the news().

A. Emergency founder Gino Strada denounced the detentions of the aid group’s four workers.
B. Afghan policemen called it a mafia-style attempt to silence a witness.
C. Afghan officials said they were held as part of an investigation into an alleged plot to kill the governor of Helmand Province.
D. In total nine people, were held before explosive suicide vests, hand grenades and other weapons were discovered.