What is the purpose of a urinal?

A urinal is specifically designed to facilitate urination, particularly for men. Its primary purpose is to provide a practical and hygienic means for users to void urine, often in situations where a traditional restroom may not be readily accessible. This makes the urinal a useful tool in various settings, including hospitals, care facilities, and home care, where mobility may be limited or where quick access is needed.

The other choices present functions that do not accurately describe the primary use of a urinal. For example, solid waste collection is related to a commode or toilet, while medication administration and liquid storage for testing involve completely different processes and tools. Therefore, the focus of the question on the urinal's role in urination clearly validates that option as the appropriate answer.