Question. Look at this series: 2, 4, 6, 8, 10, ... What number should come next?
Options:
(A) 11
(B) 12
(C) 14
(D) 15
(E) 16
Answer. (B)
What step-by-step reasoning justifies that answer?
Reasoning: This is a simple addition series. Each number increases by 2.