Which finding indicates that mental images are picturelike but not actually mental pictures?

A) Mental images cannot be rotated.
B) Mental images cannot be scanned.
C) Mental images are difficult to reinterpret.
D) Mental images are easily reinterpreted.

Mental images are difficult to reinterpret, which suggests they are picturelike but not actual pictures. If they were actual pictures, reinterpretation would be easier, as we could view them from different perspectives or contexts. This difficulty in reinterpretation indicates a more fixed, less flexible nature of mental imagery compared to real pictures.