Help me with please I have more work I need to get done and I need to hurry up wit this

Choose the most appropriate demonstrative adjective and complete the following sentences.estalesa carta que estoy escribiendo es para mi abuelita.

Does anyone know what my spanish teacher means by this? i need to use plural forms of the verb ser. and she asked me to use a couple of adjectives to describe the boys collectively and then the girls collectively?

Chicken broth typical guatemalan dish. a. is the best b. is better than c. it's more delicious d. it's richer than