Step 1: Understanding the Concept:
Break the term into three parts: the first number, the middle letter, and the last number.
Step 2: Detailed Explanation:
1. First Numbers: 2, 7, 14, 23, 34... (Differences: +5, +7, +9, +11). Next is +13.
2. Middle Letters: Z, Y, X, W, V... (Reverse alphabetical order). Next is U.
3. Last Numbers: 5, 7, 9, 11, 13... (Consecutive odd numbers). Next is 15.
Step 3: Calculation:
1. First number = $34 + 13 = 47$.
2. Middle letter = U.
3. Last number = $13 + 2 = 15$.
Combined term = 47U15.
Step 4: Final Answer:
The missing term is 47U15. Thus, the correct option is (c).