To answer this question, we need to understand the concept of conditional sentences and the use of the past unreal conditional tense.
In the given sentence, "If she hadn't told me to stay," indicates a hypothetical or unreal condition in the past. The correct verb tense to use in this type of sentence is the past perfect tense in the "if" clause, and "would have + past participle" in the main clause.
Let's go through each option to understand why it is correct or incorrect:
Option A) "will go" - This option is incorrect because it uses the present tense "will go," which is not appropriate for a hypothetical or unreal condition in the past.
Option B) "would have gone" - This option is correct. It uses the past perfect tense "hadn't told" in the "if" clause and "would have gone" in the main clause, which correctly represents the hypothetical or unreal condition in the past.
Option C) "would go" - This option is incorrect because it uses the simple present tense "would go," which is not appropriate for a hypothetical or unreal condition in the past.
Option D) "want to" - This option is incorrect because it uses the present tense "want to," which is not appropriate for a hypothetical or unreal condition in the past.
The correct answer is option B) "would have gone." This option is correct because it uses the correct verb tense to represent the hypothetical or unreal condition in the past.