If a number p is prime, and 2p+5= q, where q is also prime, then the decimal expansion of 1/q will produce a decimal with q-1 digits. If this method produces a decimal with 166 digits, what is the units digit of the product of p and q?	Options
A) 1
B) 3
C) 5
D) 7
E) 9

Rationale: 1 / 7 = 014285 . . . ( a repeating pattern one digit long ) a
Answer: A