Le doy un bocadillo a mis amigos
The verb ending is the only thing that changes in present tense form, depending on who does the action. In this case, it is talking about "you" or "tu" meaning that it will end in "-es", or "haces". Therefore the answer would be:
<em>Que haces tu?</em>
Answer:
Tu tienes mi número de teléfono
Explanation:
The answer is B. TIENES.