Answer:

B

Hula hula lang sana tama

Answer:

16

Step-by-step explanation:

1. empty set or null set { }

2. {b}

3. {e}

4. {s}

5. {t}

6. {b,e}

7. {b,s}

8. {b,t}

9. {e,s}

10. {e,t}

11. {s,t}

12. {b,e,s}

13. {b,e,t}

14. {b,s,t}

15. {e,s,t}

16. {b,e,s,t}