Differences between reversible and irreversible changes​

¿en qué año se aceptó el tango en los salones de alta sociedad? a. 1896 c. en la década de 1910 b. 1898 d. en 1890

Choose the correct answer to the question que la daras

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.