Identify the term that should come in the blank space to continue the logical sequence.
$$\text{XYZ, YZA, ZAB, \_\_\_, BCD, CDE}$$

Let's examine the progression letter by letter for each 3-letter term:
1. First letters of each term: X, Y, Z, __, B, C
The letters increase sequentially by $+1$. Following Z, the alphabet wraps around to A.
2. Second letters: Y, Z, A, __, C, D
The letters increase sequentially by $+1$. Following A, the next letter is B.
3. Third letters: Z, A, B, __, D, E
The letters increase sequentially by $+1$. Following B, the next letter is C.

Combining these three letters gives ABC.