Aconditional mutation is one that allows a mutant gene product to function normally under the condition, but to function abnormally under the condition. such mutations are especially useful for the study of mutations.

A conditional mutation is one that allows a mutant gene product to function normally under the permissive condition, but to function abnormally under the restrictive condition. Such mutations are especially useful for the study of   lethal mutations.

Explanation:

A conditional mutation can be described as a form of a lethal mutation as it's effects can be devastating. This type of mutation functions like a wild type mutation under the normal conditions. When the condition becomes restrictive, these kind of mutations start to show their effect on the phenotype of the organism. The conditional mutations can cause an organism to not be able to survive under certain conditions, which eventually leads to the death of the organism.

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.