There have been many times where I felt uncertain as to how to act. Sometimes, it's because I have to make some kind of decision, and what I choose will have a larger impact. There are also times where I'm around people I don't know very well, and therefore don't know how they expect me to act. I would feel uncertain because I have no way knowing, without a doubt, what the right choice is, or how other people expect me to be.
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.
