Be present. The best communicators are those who are able to read the situation and adapt on the spot.
Break it down. When we have ideas we are excited about, we go over them a million times in our own heads.
Focus on the why.
Explain “now what.” ...
Ask for and learn from feedback.
You are correct in saying that it is y, for instance pygmy.
C. might be the correct answer.
You could add more words and better the puntuaction