Final answer:
Objects in programming are composed of properties and methods, but they are not made up of access keys or metadata. Properties include key-value pairs that define attributes, while methods are functions that operate on the object. Access keys control security access, and metadata is descriptive data not stored within the object.
Step-by-step explanation:
When discussing the composition of objects in programming, it's important to understand that objects are typically composed of properties and methods. Properties can include key-value pairs, which define attributes of the object, such as its name, size, or color. Moreover, methods are functions associated with the object that can perform actions on its properties or other tasks related to the object. However, objects are not composed of access keys or metadata in the strict sense of their internal structure. Access keys are often related to security and used to gain access to certain features or data, while metadata refers to data about the object, which is usually not directly stored within the object itself but rather is used to describe or manage the object in some context.