The answer is 'd' ,but the complete indirect object is 'her parents' not just 'parents'
The indirect object always answers the question 'who'.
Carol sent who? The answer is 'her parents' which is the indirect object.
Answer:
It shows that the people and him are the controlling centre around the country.
Explanation:
Read thru the text and look for matching text or a related subject it also depends on what the question is.