It's hard to believe _____ the way out of the forest without the help of the local guide?
A:What they were able to find
B:what were they able to find
C:how they were able to find
D:how were they able to find
先秦时期的中国将对图腾的崇拜转化为对祖先的崇拜,将英雄与祖先重合,将祖先英雄化和神化;而后又发展为对祖宗的崇拜。该变化有利于( )