Final answer:
Secondary hypertension may result from A. kidney disease, pregnancy, and endocrine disorders. However, it can also occur without a clear known cause.
Step-by-step explanation:
Secondary hypertension, also known as high blood pressure, may result from various causes. However, one of the options listed in the question is incorrect. The correct answer is: A. Kidney disease
Secondary hypertension can be caused by kidney disease, pregnancy, and endocrine disorders. It can also occur without a clear known cause, which is known as essential hypertension.