The correct option is C XLI
Let us first convert the given Roman numerals into Hindu-Arabic numerals.
II = 1 + 1 = 2
XXXIX = 10 +10 + 10 + 10 - 1 = 39
Thus, II + XXXIX = 2 + 39 = 41.
But, 41 = 40 + 1
= (50 - 10) +1
= XL + I
= XLI.
Therefore, II + XXXIX = XLI.