the first one you would have to add a conjunction to. That makes it correct.
For Example:
Arturo loves to hike and he's familiar with all the local trails.
The flowers began to blossom, the bees began to buzz, and the cool breeze slid down my neck. I’ve never experienced anything like it, I looked around admiring the new land plot that I was never expecting to experience before !
D). statistics. this shows that you are up to date on facts, and can prove facts about the topic you are speaking about. facts and statistics are concrete evidence that emphasize your arguments and help make your tip cohesive.
plus it makes you come off as smarter and more credible.
-hope it helps
