Answer:
<em>The correct option is C) happened by chance</em>
Explanation:
Mutations can be described as any changes which occur in the DNA of an organism. Mutations can be natural or induced through methods like the use of chemicals.
Mutations occur randomly and happen by chance. Hence, option C is correct.
Other options like option A are false because mutation is the sudden change in the genome of an organism. Hence, mutations will not cause the teeth to grow longer until they reach an optimal length.
The lack of effective palliative care has many causes. This would include the lack of integration of palliative care into most health care systems, the inaccessibility of hospice care, ignorance of methods of palliative care, difficulties in obtaining narcotics, cultural and religious beliefs of the patient and family.
The correct answer is C. Skin cancer, lung cancer, and Brest cancer
