Answer: C. “I will send for you soon.”
Explanation:
The answer C uses "will" which is mostly use in future tense sentences. A future tense example: I'll see you tomorrow.
1. Verbs in the Present Simple: used for repeated actions, thoughts, feelings and states.
They never<em> eat</em> carrots.
How often <em>do</em> you <em>go</em> to the cinema<em> ? (Do </em>is the<em> auxiliary verb </em>for this question)
They<em> don't like </em>potatoes. (<em>Don't</em> is the contracted form for <em>Do no</em>t)
2. Verbs in the Present Continuous: used to say somebody is in the middle of an action)
What <em>are</em> you<em> doing</em> now ? (verb to<em> be</em> +<em> verb</em> +<em> ing</em>)
cipher is another word for code
hope this helps
You can't aware the question without the text. I'll look up the story though for sure