What type of maintenance involves cleaning out flower beds at an apartment complex?

The correct choice for the maintenance involving cleaning out flower beds at an apartment complex is landscape maintenance. This type of maintenance specifically focuses on the management of outdoor spaces, which includes activities such as planting, pruning, mowing, and, importantly, cleaning flower beds. Cleaning flower beds typically involves removing debris, dead plants, and weeds, which is essential for maintaining aesthetic appeal and the health of the plants within the beds.

While custodial maintenance pertains to tasks related to cleanliness inside buildings, such as sweeping floors and cleaning common areas, it does not encompass the outdoor landscaping tasks. Structural maintenance focuses on repairs and upkeep related to the physical structures of buildings, while preventative maintenance involves actions taken to prevent potential future issues or breakdowns. In this context, landscape maintenance is specifically tailored to the care and upkeep of the outdoor environment, making it the most relevant choice for the task of cleaning flower beds.