Which of the following statements can be inferred from the passage a. An investor of trading stocks only cares about the fixed assets of companies. b. A buyer of investing stocks is always concerned about the performance of companies. c. Most people keep their investing stocks for a longer period of time. d. All people buy trading stocks and investing stock at the same time.

《新保密法》共有（）

A、五章三十五条

B、六章四十条

C、六章五十三条