Final answer:
In Spanish, the verb 'calentarla' best completes the sentence.
Step-by-step explanation:
The correct verb to complete the sentence is B. calentarla.
In the sentence, 'La comida está muy fría,' which means 'The food is very cold,' the verb that best completes the sentence is 'calentarla,' which means 'to heat it.' This verb indicates the action needed to make the food warm.
For example, if you want to have warm food, you need to calentarla antes de comer, which means to heat it before eating.
Learn more about Spanish Verbs