Where is the discussion?
First put the discussion in your question please so that we answer.
Explanation:
Thunderstorms arise when layers of warm, moist air rise in a large, swift updraft to cooler regions of the atmosphere. There the moisture contained in the updraft condenses to form towering cumulonimbus clouds and, eventually, precipitation.
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.
Honestly in my opinion, good internet connection can help children with issues in their personal lives