Took that test.
the answer is all of the above
Me llamo means my name is :)
Avía is the answer for your question
The answer is Ellas that is the answer
1.la (Why? Because singular and third person and feminine)
2. los (Why? Because plural and third person and masculine)
3.lo (Why? Because singular and third person and masculine)
4 los (Why? Because plural and third person and masculine)