Which processes contribute to the formation of chemical sedimentary rocks?

organisms decay in a solution.
minerals dissolve and crystalize.
rock fragments squeeze together.
the remains of plants and animals.

Minerals dissolve and crystallize.

The remains of plants and animals.

Explanation:

The chemical sedimentary rocks form when the parent material weathers into a sediment. The sediment includes chemical inorganic minerals and partially or completely degraded organic matter that comes from the remains of plants and animals. The layers of sediments get compacted with overlying heat and pressure which leads to the formation of chemical sedimentary rocks.