Find the next term in the alphanumeric series:C4X, F9U, I16R, ?

The correct answer is Option (3) → L25O

Each term has three parts — a letter, a number and a letter — and each part follows its own rule:

• First letters: C, F, I — each 3 places forward, so the next is L

• Numbers: 4, 9, 16 — the squares \(2^{2}, 3^{2}, 4^{2}\), so the next is \(5^{2}=\) 25

• Last letters: X, U, R — each 3 places back, so the next is O