Correct option is B
The pattern followed here is:

According to the alphabetical positions of the letters,
PENINSULA → P (16) + E (5) + N (14) + I (9) + N (14) + S (19) + U (21) + L (12) + A (1) = 16 + 5 + 14 + 9 + 14 + 19 + 21 + 12 + 1 = 111
Similarly,
DICHOTOMY → D (4) + I (9) + C (3) + H (8) + O (15) + T (20) + O (15) + M (13) + Y (25) = 4 + 9 + 3 + 8 + 15 + 20 + 15 + 13 + 25 = 112
Hence, ‘ 112 ’ is the correct answer.