国家解决物价、住房、就业等民生问题的根本途径是[ ]

A．坚持四项基本原则       

B．和平统一、一国两制的基本方针

C．建设社会主义先进文化   

D．以经济建设为中心，大力发展生产力

－Can you tell me ______?

－Yes. She came here on foot. [ ]

A. where Kate came from

B. how Kate came here

C. when Kate comes here

D. why Kate didn't come here