Which description refers to stratus clouds

These are featureless, low altitude type of clouds. It is characterized by horizontal layering with a uniform base. Stratus clouds may produce a light drizzle or a small amount of snow. They can be composed of water droplets, supercooled water droplets, or ice crystals depending upon the ambient temperature.

c

Explanation:

it cant be A because a is cirrus cloud.

it cant be B because thats cumulus cloud

and it cant be D because thats also cirrus cloud

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.