Final answer:
Rogue waves can be larger than the theoretical maximum height of waves in a fully developed sea due to constructive interference.
Step-by-step explanation:
The correct answer is (a) Constructive interference; Combination of smaller waves. Rogue waves can be larger than the theoretical maximum height of waves in a fully developed sea due to constructive interference. When two or more smaller waves combine their amplitudes, they can create a single wave with a much higher amplitude. This can result in the formation of a rogue wave, which is a highly unpredictable and dangerous wave that can be many times larger than the surrounding waves.