A tree inside the white-box

Get ready to put your AI model interpretability skills to the test! Not all models are easily interpretable by humans, but white-box models like decision trees for classification are good examples of white-box models that offer remarkable interpretability.

Behold the visual depiction of a very straightforward decision tree model designed to classify penguin observations into three distinct species. Its predictions are based on a set of predictor attributes linked to each penguin specimen.

Only one of the four penguin observations below would be classified as Adelie penguin when being passed to this decision tree model. Can you find it?