The answer is #4, the semicolon.
This is a "compound sentence." Notice that each half of the sentence
could stand alone as a sentence in its own right:
Studying hard will get you a job.
Working hard will let you keep it.
Here's a good article on the subject of compound sentences and the use
of the semicolon:
"To understand the principal use of the semicolon, you must be able to
recognize a simple sentence. Here's why: when you join two simple
sentences together (making a compound sentence) the punctuation
between them becomes a big deal.
Two simple sentences: Plato has little respect for artists. He would
not encourage artistic representations in an ideal society. (Note the
PERIOD between these simple sentences.)
The question: If two sentences are combined into a single sentence,
what takes the place of the period between them?
The answer: It depends!
It depends on whether you also use one of these words: and, but, yet,
so, for, or, nor. Of course you know these words and have used them
often. They are called coordinating conjunctions.
When you use a coordinating conjunction to connect two ideas, place a
comma after the first sentence.
Plato has little respect for artists, so he would not encourage
artistic representations in an ideal society.
When you do not use a coordinating conjunction to make the connection,
use a semicolon.
Plato has little respect for artists; he would not encourage artistic
representations in an ideal society."
Lawrence University: Semicolons
http://www.lawrence.edu/dept/student_acad/ctl/writing/pamphlets/semicolons.shtml
Google search strategy:
Google Web Search: "use of the semicolon"
://www.google.com/search?hl=en&q=%22use+of+the+semicolon%22
I hope this is helpful. Please request clarification if anything is
unclear or incomplete; I'll gladly offer further assistance before you
rate my answer.
Best regards,
pinkfreud |