Answer: Brainstorming ideas mean to come up ideas for a plan etc.
Explanation: Planning to make a lemonade stand: the things I would obviously need is: lemons, sugar, a table and a container to put the lemonade in.
Search up the definitions for the words and I think it will be much easier!:)
The correct answer is A. This is the case of using comma before a coordinating conjunction <em>and</em> because it links two independent clauses. We can observe that there two parts of this full sentence and each part is independent from each other. Both of them have their own subject and verb. Therefore, we are using a comma before <em>and</em>.
