I would definitely say C. The mother smoked during the pregnancy.
D, they lead to depression in children
A reason could be to lose weight or lowering blood pressure and having higher energy levels.
Well, we basically has 80 spots and 20 choice for the spot
which mean the amount that could be constructed would be : 20 x 20 x 20 x 20x 20 x20 x 20
which is about 2,560,000,000
Hope this hekos