Look at the four squares,A,B, C, and D , which indicate where the following sentence could

be added to the passage．Where would the sentence best fit？

One way of understanding the nature of long-term memory is to consider the types of information stored there.

A Long-term memory can hold recollections of personal experiences as well as factual knowledge acquired through other means such as reading．It also holds skills such as knowing how to ride a bicycle．B In its ability to learn and remember, the brain can distinguish between facts and skills．When you acquire factual knowledge by memorizing dates, word definitions, formulas, and other information, you can consciously retrieve this fact memory from the data bank of your long-term memory．C In contrast, skill memory usually involves motor activities that you learn by repetition without consciously remembering specific information．D You perform. learned motor skills, such as walking or riding a bicycle, without consciously recalling the individual steps required to do these tasks.

A．Square Ａ.

B．Square Ｂ.

C．Square Ｃ.

D．Square Ｄ.