If T = 5/9 * (K - 32), and if T = 20, then what is the value of K?	Choose the correct choice from the following.
A) 68	B) 70	C) 72	D) 74	E) 76

Rationale: "k - 32 = 9 t / 5 k = 9 t / 5 + 32 k = 9 ( 20 ) / 5 + 32 = 68 the answer is a ."
Answer: A