What’s more, in their traditional idea, Chinese people enjoy elderly care at home, and many people believe it is not filial to send an elder to a place such as eldercare home. Based on the context, what is the given information, A, B, C, or D?（ ）。
选项：

A:traditional idea
B:it is not filial to send an elder to a place such as eldercare home
C:elderly care
D:elderly care at home