Which sentence uses the correct comparative form of the adjective pretty?

A.
That blue dress is the prettiest one on the rack.

B.
This blouse is prettier than the one that got stained.

C.
Those flowers are very pretty.

D.
I think yellow roses are more prettier than red roses.
I think it is A.

Question

Which sentence uses the correct comparative form of the adjective pretty?
 
 A.
That blue dress is the prettiest one on the rack.
 
 B.
This blouse is prettier than the one that got stained.
 
 C.
Those flowers are very pretty.
 
 D.
I think yellow roses are more prettier than red roses.
I think it is A.

inowalst · Answer

http://esl.about.com/od/beginningenglish/ig/Basic-English/Comparative-Form.htm Look at the examples they give..

anonymous · Answer

is a because it compares them to the ones on the rack