Alternate freezing and thawing often leads to

a. creep
b. slumps
c. mud flows
d. earth flows

The answer from the given options is "A. Creep".

Alternate freezing and thawing often leads to "creep".

Creep refers to the low mass development of soil and soil material down slants, driven fundamentally by gravity yet facilitated by immersion with water and by substitute freezing and thawing. Generally not distinguishable with the exception of through expanded perception.

i don't know that i agree with that but what's the question ?

i believe the answer would be:

d. violin, clarinet, french horn, and tuba