A combining vowel is often added to a word root. What is a vowel, ...

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A combining vowel is often added to a word root. What is a vowel, and why would such a thing be added to the word root?
 
  A) L is an example of a vowel, and this letter is commonly used in medical terms.
  B) O is an example of a vowel, and it is added to change the meaning of the constructed term.
  C) O is an example of a vowel, and it is added to make the constructed term easier to pronounce.
  D) V is an example of a vowel, and it is added because medical terms often have too many consonants.

Question 2

Plaque on the arterial walls is characteristic of ________.
 
  A) varicose veins
  B) atherosclerosis
  C) hypertension
  D) congestive heart failure

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Answer to Question 1

C

Answer to Question 2

B
Explanation: A) Varicose veins do not have plaque.
B) Correct
C) Hypertension is high blood pressure, not plaque.
D) Plaque is not characteristic of congestive heart failure.