1. Since it is an indirect quotation, you will not use the " symbols because using that means that you quoted the person verbatim. So, the answer is D. As you notice, the sentence was continuously presented without the use of quotation marks but the thought remains the same. Only, the pronoun 'he' was used.
2. The answer is D. Notice that this sentence is presented continuously with the help of punctuation marks. The comma signifies a pause to indicate that the next part of the sentence is a direct quotation.
3. The answer is C. If we analyze the statement, there are two quotations. The main quotation is what Clarisse told her mother. However, there is also a quote within Clarisse's statement - that is, what her mother says. Since both are direct quotations, then the "" symbols should be used.