Premise: Poirot wished her good morning with Gallic politeness, and went on: "We have been looking through that chest, Dorcas.
Hypothesis: Poirot was very rude to her because he was busy talking about a murdered man.
Is the hypothesis entailed by the premise?
OPTIONS: 1). yes. 2). it is not possible to tell. 3). no. And the answer is:
3).