Which statement accurately describes the coffee tree's pollination process?

The assertion that the coffee tree is self-pollinating is accurate, as coffee flowers are hermaphroditic, meaning they contain both male and female reproductive structures. This characteristic allows the coffee plant to facilitate its own pollination without needing external pollinators, such as bees or other insects, to transfer pollen. Although external pollinators can assist in this process and may increase cherry production, they are not strictly necessary for the formation of coffee cherries.

The other statements do not delineate the coffee tree's pollination process effectively. Some coffee trees can produce cherries in varying weather conditions, but the process of self-pollination is inherent to the plant’s biology. The relationship between weather and cherry production is more complex, involving factors such as overall health and climate rather than being directly tied to the pollination mechanism itself. Similarly, coffee flowers are essential to cherry production as they are the source of the cherries that develop after successful pollination.