Question

¡hola! ¡qué tal? carola y edna cuando entran a la clase de español.

Explanation:

The sentence describes an action Carola and Edna do when entering Spanish class, matching the greeting dialogue shown. The correct verb form for the plural subject "Carola y Edna" (they) in present tense for "saludar" (to greet) is "saludan".

Answer:

saludan