Mike’s friends ask him to make his popular ten-layer dip for the tailgate party at the big football game. The ten layers are: three layers of mashed avocado, two layers of cheddar cheese, and one layer each of refried beans, sour cream, sliced olives, chopped tomatoes, and green onions. How many ways can Mike make the ten layers in a glass serving pan?

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.