What is the numerical equivalent of viensetes

Para hacer la masa, ¡ los huevos y la leche bien! a. mezclas b. mezclan c. mezcles d. mezcle

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?

Fill in the blank with the spanish word that best completes the following sentence. el esposo de manuela es muy le regaló un anillo de oro