What does the man at the restaurante do

Las visitas registrar sus nombres en la recepción para entrar al edificio. a. es necesario b. necesitan c. hay que d. deber

Decide whether the sentence is grammatically correct or incorrect as written.¿preguntas una chaqueta nueva para la navidad?

In the diagram, which must be true for point d to be anorthocenter? o be, cf, and ag are angle bisectors.be 1 ac, ag 1 bc, and cf 1 ab.be bisects ac, cf bisects ab, and ag bisects bc.be is a perpendicular bisector of ac, cf is aperpendicular bisector of ab, and ag is a perpendicularbisector of bc.