For Tener: ¿Tienes las respuestas para la tarea de matemáticas?
For Estar: ¿Estas en la casa de (insert any name)?
Can’t think of one for ser but hope these two help
If you still need help the answer is b if you are talking for multiple people. But if you Are talking about only one person its c
<h3>Traduzca al español. Sara was feeling sick.</h3>
Answer : Sara se sentía enferma.
<em>Explanation : The English past continuous can translate to the imperfect past Spanish, especially in reflexive verbs as "sentirse".</em>