Final Answer:
When a client states, "I will quit smoking if the results don't come back positive for cancer," they express readiness to quit smoking.
Option c) is the correct answer.
Step-by-step explanation:
a) While fear of cancer may play a role, the statement indicates a conditional commitment related to the test results.
b) Acceptance of potential cancer diagnosis would involve acknowledging the possibility, which the statement does not explicitly convey.
c) The statement reflects the client's readiness to quit smoking if the medical test results are negative for cancer, indicating a willingness to make a positive health change.
d) Defiance against medical advice would involve refusing to quit smoking regardless of the test results, which contradicts the conditional commitment expressed in the statement.
Option c) is the answer.