We know that organisms inherit their traits from their parents, and these traits are a combination of the traits their parents possessed. Therefore, by using a pedigree to map the ancestry of an organism, we may evaluate the propagation of a specific trait through the organism's family. An example of this is when people are assessed for the risk of diseases like breast cancer and sickle cell anemia.
As we know that rate law expression is

(a)

(b)

(c)

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Answer:
We are asked to describe the half-life of the radioactive materials.
- Hence the 3rd option is correct
As the temperature is lowered matter is more likely to exist in the solid state