It would be a and d i think
V-shaped valley
As the river erodes downwards the sides of the valley are exposed to freeze-thaw weathering which loosens the rocks (some of which will fall into the river) and steepens the valley sides. The rocks which have fallen into the river help the process of corrasion and this leads to further erosion.
Hydrogen has two atoms in water, and there is one atom of oxygen in water
Lipases are enzymes that lead to the hydrolysis of lipids.
I would choose the kid
because it your kid man you cant abandon them
plus when there small there very squishy and soft
and they smell like baby powder