Mrs Wilson began her career as a preschool teacher...
Repeating (or repetition) is not a component of active listening. It can be a mechanical process, devoid of understanding. Many people repeat some phrases just to show that they are listening, when in fact they are not. All the other components presume that the listener has received the message and processed it.
The correct way to punctuate is seen in b:
<span>To whom it may concern:
</span>
In formal settings and when you don't know the exact identity of the person a dresses it is usual to use a colon in this situation.
