Correct answer:
tu
Le is the indirect object pronoun that matches both the third person singular (él/ella) and the formal you (usted). An Indirect Object Pronoun is a person that receives the action of a verb indirectly. Its purpose is to tell you to whom or for whom something is done. So the indirect object that matches tu is not le, but te. So these are some examples:
- Te gusta el helado (You like ice cream)
- A ella le gusta la playa (She likes the beach)
- A él le gusta el fútbol (He likes soccer)
- A usted le encanta dormir (You love to sleep)
