Which polynomial does this group of tiles represent? help please!

Answer:
D) 7x^2 +5x +3
Step-by-step explanation:
So there are 7 ones from ' x^2' and 5 ones from X and 1 + 1 +1
X^2 +x^2+ x^2 + x^2 +x^2+x^2 +x^2+ x+ x+ x+ x +x+1 +1 +1
= 7x^2 +5x +3
Good Luck