In a class of $20$ students, $7$ students scored above the threshold on a test. Three students are chosen at random without order. What is the probability that exactly two of the chosen students scored above the threshold?

• A. $\frac{73}{251}$
• B. $\frac{91}{380}$
• C. $\frac{1}{19}$
• D. $\frac{57}{496}$

Answer: (B)