Source: Previous Question Papers

Observe the following pyramid of numbers and the sequence of terms given in the questions that follow. Choose the correct term from the given alternatives to replace the question mark.
11, 17, 31 : 37, 22, 32 :: 28, 12, 31 : ?
Options
Option A
21, 34, 38
Option B
26, 20, 38
Option C is correct
26, 20, 15
Option D
26, 34, 15