Cumulus and comulonimbus clouds are more likely to be formed by which front?

a) stationary front
b) cold front
c) occluded front
d) warm front

it's filtration, but this is an assumption so my apologies if i got this

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )