A、Over 3,700. B、Less than 3,600. C、Over 3,600. D、Less than 3,700. A新闻开头提到，联合国儿童基金会表示西非有3700多名儿童由于埃博拉病毒失去父母一方或双亲。故答案为A。

UNICEF says more than 3,700 children across west Africa have lost one or both parents to Ebola. "Doctors without borders" Axelle Vandoornick said the growing number of Ebola orphans is a crisis of its own. Child care services in Sierra Leone are almost nonexistent.
   Ministry of health social services officer Doris Mansare is in charge of running Kailahun’s first Ebola children center for orphans. She said "it’s difficult for us to find family members, so this temporary care center was established to basically insure that we get the children from the treatment center."
   Vandoornick said it can be hard to find surviving family. Ebola is wiping out entire families because the disease spread inside the families easily.
   Doris said she hopes the new center will help the growing number of orphans, but she worries? about their future. Vandoornick hopes there will be many child care centers set up across Sierra Leone.
3. How many kids have lost parents to Ebola in West Africa?
4. What is Vandoornick’s hope?