Not surprisingly, Abuela was busy cooking up a storm for our family dinner. I spied the freshly made salsa on the counter and couldn’t resist sneaking a spoonful. It was superb as always, and I savored the fire on my tongue.

The passage primarily uses C. idiom and E. simile to develop the cultural setting.

• The phrase "cooking up a storm" is an idiom, suggesting that Abuela is passionately and energetically preparing a large meal.
• The description "savored the fire on my tongue" employs a simile by comparing the sensation of spiciness to fire, illustrating the intensity and flavor of the salsa.

Therefore, the correct answers are C. idiom and E. simile.