A sentence is provided in direct speech. From the four given options, choose the one that most accurately conveys the sentence in its corresponding indirect speech:

She said, “Finish it right now.”

The correct answer is She told me to finish it immediately.

Step-by-Step Explanation:

To convert an imperative sentence from direct speech to indirect speech, we follow specific grammatical rules:
1. Reporting Verb Change: The reporting verb "said" changes to "told me", "ordered", or "requested" depending on the context and tone of the command. Here, "said" is correctly changed to "told me" to indicate the listener.
2. Use of Infinitive: In imperative sentences (commands or requests), the verb in direct speech ("Finish") is converted into an infinitive form preceded by "to" ("to finish").
3. Adverbial/Time Expressions Change: Words referring to time or place often change to reflect the reported context. "Right now" changes to "immediately" or "then" to convey the sense of urgency at that time.

Analyzing the options:
• Option 1: "She said to finish it instantly." – Lacks the indirect object ("me") required by the standard reporting structure in this context.
• Option 2: "She told to finish it then." – "Told" requires an object (e.g., "told me").
• Option 3: "She told me to finish it immediately." – Correctly applies the reporting verb ("told me"), infinitive form ("to finish"), and appropriate change of the time phrase ("right now" to "immediately").
• Option 4: "She told me finish it right now." – Missing the infinitive marker "to" and fails to change "right now".

Therefore, She told me to finish it immediately. is the most accurate indirect speech conversion.