What needs to be done to correct the following sentence?

Queen Mary wanted her death to be remembered, therefore, she staged a pageant. a) Remove , after therefore b) Change , after remembered to a semicolon c) Change , after remembered to a semicolon and add , after Mary d) Remove , after remembered My asnwer would be c) correct?

punctuation

A first class employee is: dependable, loyal, and efficient. a) Add a hyphen after first b) Replace the colon with a , c) Remove the colon d) Remove the colon and add a hyphen after first. I would think c) correct?

punctuation

The case against the Dallas based company was handled in Seattle. a) Correct b) Add hyphen after Dallas and after based c) Add hyphen after Dallas and a comma after company d) Add hyphen after Dallas My guess would be: C) is this correct?

Romeo and Juliet Literary Applications

In the attatched document I have completed the 26 questions about characterizing lieterary applications to the play. I just need to make sure I am on the right track and choosing the correct answers. Thank You!

apostrophe's

Jay and Jaylene have four brothers. All four have a poor work ethic. Therefore, Jay and Jaylene ____ pleased with any of their _____ work habits. a) are'nt brother's b) aren't brothers' c) aren't brother's d) are'nt brothers' My thinking is b, correct?