Answer:
(x+7) / 3
Explanation:
Factorise the Top half to give :
x² + 12x+ 35 = (x+5)(x+7)
Factorise the bottom half to give :
3(x+5)
Cancel (x+5) from top and bottom to give :
(x+7) / 3
So our final answer is Option 3
Hope this helped and have a good day