x, y, a, and b are positive integers. When x is divided by y, the remainder is 6. When a is divided by b, the remainder is 10. Which of the following is NOT a possible value for y + b?	Choose the correct choice from the following choices
A) 24 B) 21 C) 20 D) 16 E) 15
Important note: remainder is ALWAYS less than divisor, thus y&gt;6 and b&gt;10 --&gt; y+b&gt;16.   Answer: 16.
<result>D</result>
x, y, a, and b are positive integers. When x is divided by y, the remainder is 6. When a is divided by b, the remainder is 10. Which of the following is NOT a possible value for y + b?