Answer:
Answer choice C is the correct answer.
Explanation:
Answer choice A, 4/9, is equal to roughly .44.
Answer choice B, 2/5, is equal to exactly .4.
Answer choice C, 3/6, is equal to exactly .5.
Answer choice D, 5/12, is equal to roughly .42.
A proportion implies that the fractions will equal each other in value. The fraction 7/14 is equal to 1/2 or .5. Answer choice C, when simplified, is equal to 1/2 or .5, making it the correct answer.