What is the author's attitude toward the future of autos ______.

A．If we focus our attention on one thing, we might forget another
B．Memory depends to a certain extent on the environment
C．Repetition helps improve our memory
D．If we keep forgetting things, we'd better return to where we were

A．The process of gradual memory loss
B．The causes of absent-mindedness
C．The impact of the environment on memory
D．A way of encoding and recalling