the Inca city was soon burned to the ground. the facts are uncertain, one tradition holds that the remaining Inca refused to let anyone occupy their once glorious city. Another tradition holds that Rumiñahuy, an indigenous warrior, set the city on fire and destroyed the temples of the Incas.
Define, the account group and whether it corresponds to currents or non-currents: loans to empleadosprestamos bankers cassava planting box girl buildings bills pay (3months)
First of all, it's important to note whether the sentence is referring to plural or singular noun. It mentions "los tratamientos", therefore it is plural which eliminates A and B.
Second of all, the phrase "es dudoso que..." is commonly associated with subjunctive. Curar is the original form of the word which in subjunctive changes ar to er tenses.
Therefore your answer is C. curen because it is both subjunctive and plural
