Help me choose an ad image!

I'm promoting Murder on the SS Rosa on Bookbub. I need my readers' input on which ad images you find most appealing. Please look through the following images and answer the short poll (it's only 2 questions!) Feel free to leave a comment letting me know why you like or dislike the images. Thanks!

A.

B.

C.

D.

Don't forget to follow me on Bookbub. See button in the footer below.