Identify the correct use of the pronouns 'lo', 'la', 'los', and 'las'
To replace direct object pronouns
To call attention to something
To refer to ideas, actions, and situations
To replace indirect object pronouns

a) 1 and 2 are correct.
b) 1, 2, and 3 are correct.
c) 1, 3, and 4 are correct.