Which of the following practices should be included in a firm’s code of ethics（）
A. Providing the board with relevant corporate information in a timely manner and allowing board members or other insiders to purchase stock before shareholders can make purchases.
B. Neither providing the board with relevant corporate information in a timely manner or prohibiting board members or other insiders from purchasing stock before shareholders can make purchases.
C. Providing the board with relevant corporate information in a timely manner and prohibiting board members or other insiders from purchasing stock before shareholders can make purchases.
参考答案：C
解析：
The firm’s code of ethics establishes the basic principles of integrity, trust, and honesty. Two of the practices listed in the reading discuss providing the board with relevant corporate information in a timely manner and prohibiting board members or other insiders from purchasing stock before shareholders can make purchases.