Answer to Question 1
C
Explanation: A) Nephritis is inflammation of the kidney, not renal failure.
B) Urethritis is inflammation of the urethra, not renal failure.
C) Correct
D) Erythropoietin is a hormone secreted by the kidneys.
Answer to Question 2
C
Explanation: A) This is misspelled.
B) This is misspelled.
C) Correct
D) This is misspelled.