What was the 7 achievements of the han dynasty?

"in english, write six to eight sentences comparing cultural aspects of greetings in spanish-speaking countries with greetings in your own culture. use what you learned in the lessons to tell about three differences and three similarities. discuss non-verbal greetings and how respect is shown. you may also include verbal greetings, but do not simply translate phrases from one language to another."

Which form of the verb ir correctly completes this sentence?

Limpio la casa todos los días tengo una alergia al polvo. a. cuando b. si c. porque d. pero