ANSWER:
Sister
Explanation: A direct object answers the question of who(m) or what
Which Would make sister the correct answer because it shows he’s giving an apple To someone ( his sister)
Another way to think of this is Javier gave his sister what? A apple. Who received it? His sister
1. Yo SOY de Veracruz
2. Mi familia y yo SOMOS mexicanos
3. ¿De donde ERES tú?
4. Ustedes SON buenos estudiantes
5. Nuestra clase ES interesante
Yo solia cantar.
Hope this helps.