what role does the bolded pronoun serve in the following sentence?

Marcus asked Natalie to bring "us" the box of supplies

a: It is the subject
b: It is the object of preposition
c: it is a direct object
d: it is an indirect object

In which sentence are the pronoun and antecedent "not" in agreement?

a: Everybody needs to call its parents.
b: The doctor e-mailed all her patients
c: The child lost interest in his toy.
d: How can we help friend?

Prefixes, roots, and suffixes are examples of____

a: reading strategies
b: memory aids
c: word parts
d: descriptive words