The correct answer is B. <span>0.002010812m3. Good Luck! :)</span>
Work done against gravity to climb upwards is always stored in the form of gravitational potential energy
so we can say

here h = vertical height raised
so here we know that

here we have

now from above equation


so work done will be given by above value
The answer is B! Hope this helps
The normal force is always perpendicular to the surface. So it would be straight to the left of the wall