First, let`s identify which conditional this is, so we`ll have to name the verb parts of these clauses:
<em>If you lead by example</em> - verb is lead and it is present simple tense.
<em>your sister might even stay in school</em> - might stay - it a modal construction that consists of a modal verb might and bare infinitive of a verb to stay
This combination is seen in the second conditional. Modals can be: would, might, can, may...
Answer A - example does not affect the sentence in any way.
Answers C and D - stay and lead - those are the verbs that have to be in these clauses. So what is needed so that this can be a conditional sentence is modal verb might.
The excerpt from “The Treasure of Lemon Brown” that reveals a change in the relationship between Lemon Brown and the neighborhood thugs is B. We don’t want to have to come in and hurt you, old man, but we don’t mind if we have to.”
<h3>What is a Narration?</h3>
This refers to the use of a narrator to show the sequence of events in a story, showing the main details.
Hence, we can see that from the complete text, there is the narration of the relationship between Lemon Brown and the thugs and how they wanted to hurt him and gave him fair warning.