The pronoun <em>what </em>is used as an interrogative pronoun. These pronouns are used to ask questions usually.
I don't know where the sentences are. You can do it by yourself too. Just keep in mind that interrogative sentences ask a question. These sentences use a question mark (?) for asking.
Examples:
Did you go to the store yesterday?
How many people went to the concert?
I hope this helps!
Answer:
The second, third and last one
Explanation:
They protect the writer from being blamed of plagiarism and support their own words and background knowledge
<u>Given speech:</u>
<em>He </em><em>said,</em><em> </em><em>"</em><em>How </em><em>tall </em><em>the </em><em>building </em><em>is</em><em>"</em>
<em>*</em><em>*</em>compulsory to add punctuations. The sentence can be perceived either interrogative or exclamatory**
<u>Indirect </u><u>speech</u>
<h3>
<em>He </em><em>asked </em><em>me </em><em>how </em><em>tall </em><em>the </em><em>building </em><em>was.</em></h3>
<em>_</em><em>_</em><em>_</em><em>(</em><em>Interrogative)</em>
Hope it helps
