The answer would be B. Look at the graph - on top, to the left goes toward -infinity, while to the right it does the opposite. On the bottom, or the y, to the left and right it increases indefinitely. Plug this together, and you have your answer.
I hope this helped, and have a nice day!
What is the whole question
2(x+a)^2+3(z+a)+1
2(x²+a²)+3z+3a+1
2x²+2a²+3z+3a+1
Since there aren't any like terms, you can't simplify it any more.