Correct option is B
Concept: result is the product of the place value of the 3rd letter and addition of the place value of 1st and 2nd
{M (13) + A (1)} × D (4) = (13+1) × 4 = 56
{C (3) + A (1)} × T (20) = (4) × 20 = 80
{D (4) + E (5)} × N (14) = (9) × 14 = 126