Answer:
A rat is an animal that has a long tail and looks like a large mouse.
This was demonstrated in a laboratory experiment with rats.
Explanation:
In your introduction, you have to clearly identifiy the experience you are about to relate?
I am going to go with answer D. I say this because you are informing the audience how to start a garden. Hope this helps.
To identify the central idea of the text readers must - Engage while reading so that they comprehend what the writer is trying to communicate!
Hope it helps!
XD