Solution

To find the next term in the series, we analyze the pattern for each of the three letter positions separately.

• First Letter (D, G, J, ?): The pattern is to add 3 to the previous letter's position. The next letter is J + 3 = M.
• Second Letter (M, N, O, ?): The pattern is to add 1 (the next letter in the alphabet). The next letter is O + 1 = P.
• Third Letter (C, H, M, ?): The pattern is to add 5 to the previous letter's position. The next letter is M + 5 = R.

Conclusion:

Combining the resulting letters gives the next term: MPR.