According to the authorities; only 35% of the criminals go to jail. a:use a period after "authorities" b:use a comma after "authorities" c:use a colon after "authorities" d:there are no errors ---- My answer is "d" Is that correct?

Answer 1

No, d is not the answer.

Read here about semicolons
http://grammar.ccc.commnet.edu/grammar/marks/semicolon.htm

and commas:
http://grammar.ccc.commnet.edu/grammar/commas.htm

Answer 2

Thanks for the links! They really helped. I think I got it now. The answer is "b" Correct?

Answer 3

Yes, correct!