Each of the boxes above must contain one number from the set {8, 15, 16, 18, 27}. A different number is to be placed in each box so that the following conditions are met. 

(1) Box P contains an odd number.

(2) Box Q contains an even number.

(3) Boxes R and S each contain a number that is a multiple of 9.

( 4) The number in box P is less than the number in box Q. 

What number must be in box T? 

(A) 8 (B) 15 (C) 16 (D) 18 (E) 27