A、At least 390. B、Less than 90. C、About 300. D、About 200. C新闻中提到，人们估计在这一垃圾填埋场将会发现90具遇难者的遗体，但是遇难者协会则认为数字会上升到3000因此，在这里能发现的遗体数量可能为

Forensic experts in Colombia have begun a search for hundreds of bodies at a landfill site believed to be one of the largest urban mass graves in the world. Relatives of possible victims held a ceremony at the site on the outskirts of the city of Medellin before the digging work started. Natalia Kaushoi reports from Bogota. “The operation is expected to last five months. Around a hundred thousand cubic meters of rubble will be removed to try to find the bodies of people killed in a joint operation between the army and paramilitary groups that took place in 2002. It is estimated that around 90 bodies were dumped in the landfill site at the time, but victim organizations suggest that could be up to 300.”
3. Before the digging work started, what did the relatives of possible victims do?
4. How many bodies could be possibly found in the site according to victim organizations?