Which phrase best completes this sentence? fueron a la abarrotería y compraron unos libros y unas novelas una nevera y una televisión unos vaqueros y una chaqueta maíz, pan y el arroz

An abarrotería is a Spanish word used in Central America for grocery store.  

In a grocery store normally edible products are sold, and among these products are corn, bread and rice, which in spanish are maíz, pan y el arroz.

Therefore the complete sentence is:

They went to the grocery store and bought corn, bread and rice

The options unos libros y unas novelas (some books and novels), una nevera y una televisión (a fridge and a television) and unos vaqueros y una chaqueta (some jeans and a jacket) are not edible products, hence are incorrect in this sentence.

tres kg o 6.6 pounds