What is the difference between RA(Registration Authority) and CA(Certifying Authority)? RA interacts with the subscribers for providing CA services. The RA is subsumed in the CA, which takes total responsibility for all actions of the RA.
1 When you fall on hard times, a good friend is loyal to you. As the saying goes You know who your true friends are in hard times.  A good friend is sensitive to your needs and can be sensitive when the situation requires it.
The best sales people are very well mannered. Others may not realize it, but good manners are a way of showing respect to others. People are attracted to those that respect them and mutual respect is fundamental in building lasting relationships with people, including buyers.