The cyclic model of the origin of the universe is primarily triggered by the idea that the universe undergoes endless cycles of expansion and contraction. This model contrasts with the standard Big Bang theory, which suggests a single event of expansion. The cyclic model gained interest due to observations in cosmology, including the discovery of cosmic background radiation and theories surrounding dark energy that suggest the universe may not only keep expanding indefinitely but could eventually contract back due to gravitational forces. None of the options you provided directly relate to the cyclic model's various motivations or discoveries.
If you need to choose from those options, none accurately represents the cyclic model's triggers. However, the exploration of cosmic phenomena (like radiation in space) and patterns in cosmological observations could lead to discussions about cyclic models, but they do not specifically describe what triggered the theory directly.