Hello, can someone please help in checking if i got anything wrong in the following?

Question 8 Answer saved Points out of 1.0 Choose the description that best fits each sentence or pair of sentences. Run-On Correct The accountant was detail- oriented the CEO saw the big picture. The accountant was detail- oriented. The CEO saw the big picture. Whereas the accountant was detail-oriented the CEO saw the big picture. The accountant was detail- oriented, the CEO saw the big picture. Whereas the accountant was detail-oriented. The CEO saw the big picture. Needs a Comma Correct Fragment Question 9 Answer saved Points out of 1.0 Choose the description that best fits each sentence or pair of sentences. The computer in our office is five years old; however, a Correct replacement would be too expensive. The computer in our office Contains an is five years old, but a unnecessary replacement, would be too expensive. comma Although the computer in our office is five years old, a Correct replacement would be too expensive. Although the computer in our office is five years old. A replacement would be too Fragment expensive. The computer in our office is five years old, a replacement would be too Splice expensive. The computer in our office is five years old a Run-on replacement would be too expensive. Choose the description that best fits each sentence or pair of sentences. Since replacing employees who quit is costly. Keeping Fragment employees happy is a better option. Replacing employees who quit is costly, keeping Splice employees happy is a better option. Replacing employees who quit is costly; keeping Correct employees happy is a better option. Since replacing employees who quit is costly, keeping Correct employees happy is a better option. Replacing employees who Contains an quit is costly; keeping unnecessary employees happy, is a better option comma Replacing employees who quit is costly keeping Run-on employees happy is a better option