To explain the printing press Gutenberg invented and why he invented it.
Explanation:
The passage begins with describing the situation which led to Gutenberg inventing the printing press. With the growth of literacy game the need for a faster and inexpensive way to produce written documents. The passage then goes on to explain the printing press Gutenberg invented and how it functions.
"guitarist" is your simple subject because a simple subject<span> is a </span>subject<span> that has just one noun as the focus of the sentence. </span>
