Final answer:
The word 'la hermana' in Spanish is feminine.
Step-by-step explanation:
In Spanish, the word 'la hermana' is feminine. The word 'el chico', 'el hermano', and 'el abuelo' are all masculine. In Spanish, words are classified as either masculine or feminine based on their endings. Feminine words typically end in 'a', while masculine words typically end in 'o'.
Learn more about Gender of Spanish Nouns