Find the length of the longest pole that can be placed in a room 12 m long 8m broad and 9m high. Choose the correct choice from the following options: A) 13 B) 14 C) 15 D) 16 E) 17

Rationale: "length of longest pole = length of the diagonal of the room = sqrt ( 12 ^ 2 + 8 ^ 2 + 9 ^ 2 = sqrt ( 289 ) = 17 m . answer is e ."
Answer: E