Answer:
1. Who is it? It's her = Es ella
2. Who are they? It's them = Son ellos
3. Who is it? It's him = Es él (man pointing to the man)
4. Who am I? It's me = Soy yo (Lady pointing herself)
5. Who are they? It's us = Somos nosotras
Explanation:
12 Personal Subject Pronouns
yo = I
tú = you (singular familiar)
usted = you (singular formal)
él, ella = he, she
nosotros (masculine) , nosotras (Feminine) = we
vosotros (masculine) , vosotras (feminine) = you (plural familiar)
ustedes = you (plural formal)
ellos (M), ellas(F) = they
