<h2>Right answer: maíz, pan y el arroz
</h2>
An <u>abarrotería</u> is a Spanish word used in Central America for <u>grocery store</u>.
In a grocery store normally edible products are sold, and among these products are <u>corn, bread and rice</u>, which in spanish are <u>maíz, pan y el arroz</u>.
Therefore the complete sentence is:
<h2>Fueron a la abarrotería y compraron <u>maíz, pan y el arroz
</u></h2>
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 <u>not edible products</u>, hence are incorrect in this sentence.