One week after filling of class II restoration, the Pt present with a complain of tenderness on mastication and bleeding from the gingival. The dentist should initially.. Check the contract area

One week after filling of class II restoration, the Pt present with a complain of tenderness on mastication and bleeding from the gingival. The dentist should initially:
a. Check the occlusion.
b. Check the contract area.***
c. Consider the probability of hyperemia.
d. Explain to the Pt that the retainer irritated the surrounding soft tissue and prescribe an analgesic and warm oral rinse.