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In Object-Oriented Programming (OOP), encapsulation and the use of objects are fundamental characteristics that define the paradigm. Encapsulation refers to the bundling of data (properties) and methods (functions) that manipulate that data into a single unit called an object. This promotes modularity and control over the accessibility of the object's properties and methods.

Objects represent instances of classes, which are blueprints for creating those objects. OOP encourages the use of objects to model real-world entities, making it easier to conceptualize and manage complex systems. This also leads to better code organization and reusability, as objects can be constructed to encapsulate specific functionalities and behaviors.

The other options do not capture the essence of OOP. Procedural programming emphasizes a linear flow of execution and functions, while dynamic typing relates more to the flexibility of variable types rather than the object-oriented structure. Synchronous execution deals with the order of operations in a program and does not pertain specifically to OOP principles. Thus, the characteristic that aligns with OOP is indeed encapsulation and the use of objects.