All u have to do is just look at your notes the teacher gave u and make a good introduction with it, but first u have to make a hook, a hook is something that catches things, like a hook catches fish, u are going to need a grammar hook, to reel in your audience to draw their attention to your essay or etc to make them read it, then your gonna need a topic, to tell people what its gonna be about, and u are also gonna need to tell them the main idea of it as well.
He led an expedition to the coast of what is now Florida in 1513.
The answer to your question is A- is
Wow because if you insert the words into the phrase, only wow sounds right.
