Upper portions of the grand canyon show undisturbed horizontal layers of of sedimentary rock which of stenos principles explain this

original horizontality

This would be some of your possibilities:

a. principle of original horizontality(answer)

b. principle of superposition

c. principle of lateral continuity

d. principle of original verticality

the answer is c.) there is a warm front in region a and a stationary front in region b.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.