问题如下：
Which of the following statements about non-market factors in corporate governance is most accurate?
选项：
A. Stakeholders can spread information quickly and shape public opinion.
B. A civil law system offers better protection of shareholder interests than does a common law system.
C. Vendors providing corporate governance services have limited influence on corporate governance practices.
解释：
A is correct.
Social media has become a powerful tool for stakeholders to instantly broadcast information with little cost or effort and to compete with company management in influencing public sentiment.
请问Common law system和Civil law能解释一下什么意思吗？为什么common law能提供更好的保护？
