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.
What was the purpose of the fast food nation
Answer:
Formal schools have existed at least since ancient Greece (see Academy), ancient Rome (see Education in Ancient Rome) ancient India (see Gurukul), and ancient China (see History of education in China). The Byzantine Empire had an established schooling system beginning at the primary level.Credit for our modern version of the school system usually goes to Horace Mann. When he became Secretary of Education in Massachusetts in 1837, he set forth his vision for a system of professional teachers who would teach students an organized curriculum of basic content.
