Introduction:
The OSI (Open Systems Interconnection) model is a conceptual framework that standardizes the functions of a communication system into seven different layers. Each layer is responsible for specific tasks in the process of transmitting data between devices. As data packets move from the lower layers to the upper layers, certain operations are performed on the packets to ensure proper communication.

Explanation:
In the OSI model, the layers are organized in a hierarchical manner, with each layer relying on the services provided by the layer below it. As a data packet moves from the lower layers to the upper layers, the headers of the packet undergo certain changes.

1. Addition of Headers:
When data is transmitted across a network, each layer adds its own header to the original data packet. This additional header contains information specific to the layer's functionality. As the packet moves up the layers, headers are successively added by each layer. These headers provide necessary information for the recipient to interpret and process the data correctly.

2. Removal of Headers:
On the receiving end, as the data packet moves down the layers, the headers that were added during transmission are removed by their respective layers. Each layer processes the relevant information from the header and discards it before passing the packet to the next lower layer. This process continues until the data reaches the lowest layer, which is responsible for physically transmitting the packet across the network.

3. Rearrangement:
While headers are added and removed, there is no specific rearrangement of headers as the data packet moves up or down the layers of the OSI model. The headers are added and removed in a sequential manner without any changes to their order or position within the packet.

Conclusion:
In the OSI model, as a data packet moves from the lower to the upper layers, headers are added by each layer to provide necessary information for processing and interpretation. However, these headers are subsequently removed by their respective layers on the receiving end. There is no rearrangement of headers during this process. Therefore, the correct answer is option 'B' - Removed.