JAKOB WROTE DOWN FOUR CONSECUTIVE POSITIVE INTEGERS. HE THEN CALC...

29. Jakob wrote down four consecutive positive integers. He then calculated the four possible totals made by

taking three of the integers at a time. None of these totals was a prime. What is the smallest integer Jakob

could have written?

(A) 12 (B) 10 (C) 7 (D) 6 (E) 3