How would you tell someone in mexico that you are going shopping at an open-air market? a) vas de compras en el centro commercial b) vamos de compras al tianguis c) voy de compras al tianguis d) ir de compras al centro comercial

Hi,

The answer is 

The question tells us that "you" are going to do shopping, so we want to say " I am going..." and can start with finding the form for "I am going" - yo (I) voy (voy is first person singular of "ir" to go). 

And this is already enough to answer the question, as there is only one option with "voy"  - so the correct answer is: 
C) Voy de compras al tianguis

Hoped I Helped

The answer is rancheros, none of the other make sense, hope it