To answer this question, the user needs to know about the different layers of the OSI model and their functions.

Error detection and recovery are functions that are performed at different layers of the OSI model, but the most common layer where it takes place is the Transport layer.

Options A, B, and E are incorrect because error detection and recovery do not take place at the Transport layer.

Option C, Data Link layer is also incorrect, because this layer is responsible for error detection and correction only for the local network segment.

Option D, Network layer is also incorrect, because this layer is responsible for routing and logical addressing.

Therefore, the correct answer is:

The Answer is: A (Transport)