Choose the best Spanish translation. Are you sick today? ¿Está tú enfermo hoy? ¿Estás tú enfermo hoy? ¿Es usted enfermo hoy? ¿Eres enfermo hoy?

The best Spanish translation for "Are you sick today?" is "¿Estás tú enfermo hoy?".<br /><br />Explanation:<br />- "¿Está tú enfermo hoy?" is incorrect because "está" is the third person singular form of the verb "estar", which is not appropriate for the second person singular "tú".<br />- "¿Es usted enfermo hoy?" is incorrect because "es" is the third person singular form of the verb "ser", which is not appropriate for the second person singular "usted".<br />- "¿Eres enfermo hoy?" is incorrect because "eres" is the first person singular form of the verb "ser", which is not appropriate for the second person singular "tú".<br /><br />Therefore, the correct translation is "¿Estás tú enfermo hoy?".