The Davis Mountains in West Texas were once taller than they are now. Which of the following forces most likely caused the mountains to become shorter over time? A. Weathering and erosion only

B. Chemical and mechanical weathering only

C. Erosion and deposition only

D. Weathering, erosion, and deposition

*Please don't put unhelpful answers, i have been stuck on this question for the past few days. Thank you!

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.