The image shows a tablet with a text message on the screen. The text message reads "Alpha Equivalence in Lambda Calculus from the Haskell book by Allen and Moronuki". Below the text message, there is a question that reads "Which is correct? I believe the answer is b). Not a) because a) omits x. Not c) because c) should be - NOT." The tablet is placed on a desk with a piece of paper and a pen next to it.