Which of these is an example of chemoprevention?
a. research into a phytochemical from a plant which might inhibit cancer development.
b. research into cancer prevention in animals other than humans.
c. research into the use of chemotherapy to cure cancer.
d. research into chemotherapy which might prevent cancer.
e. research into the use of diet to cure cancer.

A. Research into a phytochemical from a plant which might inhibit cancer development.

Explanation:

The chemoprevention is a process of utilization of chemical formulations such as medication, supplements and vitamins to the stop the growth of cancer cells. This is necessary and important for people which are at high risk of developing cancer.

The research for the phytochemical derived from the plants can be an example of chemoprevention as this will help in inhibiting the cancer development.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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