Which choice effectively combines these two sentences?

Question

'The plainer rooms are more sparsely furnished. Their architectural features, furnishings, and decorations are just as true to the periods they represent.'

A. The plainer rooms are more sparsely furnished, whereas their architectural features, furnishings, and decorations are just as true to the periods they represent.
B. The plainer rooms are more sparsely furnished by their architectural features, furnishings, and decorations are just as true to the periods they represent.
C. The plainer rooms are more sparsely furnished, but their architectural features, furnishings, and decorations are just as true to the periods they represent.
D. The plainer rooms are more sparsely furnished: their architectural features, furnishings, and decorations are just as true to the periods they represent.

'It took the camp counselors over an hour to find Tanya, who will hide beneath the canoes after listening to the scary ghost story.' What edit should be made to correct this sentence?
A. change will hide to is hidden
B. change will hide to has been hiding
C. change will hide to will have hidden
D. change will hide to had been hiding

Answer 1

I'll gladly check your answers.

Answer 2

I got C for the first one and D for the second

Answer 3

Yes. Both answers are right.