Based from reading this short passage, I believe that the authors point in this above was to practically give information above the word "solar flares". And by the author doing this, he would be giving the reader citing points of this.
Your answer: <span> It cites expert testimony about solar flares.
I would say that this would most likely be the answer mainly because when citing, this would mean that there would be an expert that would study basic needs and understanding this kind of things to understand.</span>
Why You Should Build Simple Products:-
1.People have an easier time knowing if they're in your target market or not.
2.You can grow the products by listening to customers, rather than prospects.
3.You can get your product out the door faster which often means cheaper.
One can ultimately rely on oneself to know what it right. To “trust they self” is to trust your instincts. Hope this helps :)
The first sentence is correct.
