plz help me with this question

2. The restaurants in Timbuktu either sell low quality or high quality food. It is well-known that only 10% of the restaurants sell food of high quality. The restaurant can either invest in advertisement and a nice ambiance (\"ad\") or not (\"noAd\"). The tourist then can decide whether to eat in that restaurant or to ignore it. Payoffs of the game are as follows: (:11, (12) High Quality Low Quality (ad,eat) 10,100 5,-5 (ad,ignore) -10,5 0,5 [noAd,eat) 15,50 10,-10 (noAd,ignore) -10,5 0,5 (a) Find all pure-strategy perfect Bayesian equilibria. (b) Which of them survive the intuitive criterion? [4 + 3 Points]