At El Toro Mexican Restaurant you can order a burrito, a taco or an enchilada. Any of these can be filled with either beef or chicken and topped with one of three salsas: mild, medium or hot. How many different combinations of meals can you order if you pick one of each option?

a

step-by-step explanation:

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.