Answer:
<em>When</em>
Explanation:
<em>Clause</em> is a group of words that usually consists of subject and predicate. There are two types of it: <em>independent (</em> it can stand alone as a sentence) and <em>dependent</em> ( it can not stand alone). Types of dependent clause: <em>adverb</em>, <em>adjective</em>, <em>noun</em> dependent clause. <em>Adverb clause</em> modifies the meaning of a verb, adjective, another clause etc. It usually starts with <em>although</em>, <em>if,</em> <em>after</em>...
In the given sentence adverb clause is <em>After I went to bed last night</em> and it answers the question <em>when did the telephone ring.</em>
Hhhhhh hhhhh hhhh hhhh h hh h h h h h h
So, you have an idea, but you don't yet have any material.
Before you write, you should collect some material!
You can do this for example by conducting interviews and research.
When you have some material, you should make a plan.
The correct answer is
A. Conduct interviews, do some research, ask questions, and make a plan.