To compare local code changes with the version in Team Foundation Version Control (TFVC), a developer can use several integrated methods within Visual Studio. From the Team Explorer or Solution Explorer, right-clicking the modified file provides context menu options to Compare with Latest Version (the most recent version on the server) or Compare with Workspace Version (the version you originally checked out). Both are valid ways to review changes. Alternatively, the developer can use the Developer Command Prompt for Visual Studio and run the tf diff command, which is the command-line utility for performing the same comparison, showing the differences between the local file and the server version.

C. In Team Explorer, select Compare Files.

This is a generic command that opens a dialog to compare two arbitrarily selected files. It lacks the direct, context-aware integration to compare a local file against its specific version in source control.

E. Run the vsdiffmerge command.

vsdiffmerge.exe is the visual differencing tool that Visual Studio invokes. It is not the command used to initiate a comparison with a source-controlled item; it is the application that displays the results of commands like tf diff.

1. Microsoft Docs, Azure DevOps, "Compare files": This document describes the comparison functionality within the Visual Studio IDE for TFVC. It explicitly details using the context menu to "Compare with Workspace Version" and "Compare with Latest Version".

Source: Microsoft Corporation. (2022). Compare files - Azure Repos. Microsoft Docs. Retrieved from https://learn.microsoft.com/en-us/azure/devops/repos/tfvc/compare-files?view=azure-devops (Refer to the section "Compare your local version to the latest version").

2. Microsoft Docs, Azure DevOps, "Diff Command": This official documentation outlines the usage of the tf diff command-line utility to compare a local file with the version on the server.

Source: Microsoft Corporation. (2022). Diff command - Azure Repos. Microsoft Docs. Retrieved from https://learn.microsoft.com/en-us/azure/devops/repos/tfvc/diff-command?view=azure-devops (Refer to the "Examples" section which shows comparing a local file with the server version).

3. Microsoft Docs, Visual Studio, "Use Team Foundation Version Control commands": This page provides an overview of TFVC commands, establishing tf.exe as the primary utility for command-line operations, distinguishing it from the tools it may call, such as a diff/merge tool.

Source: Microsoft Corporation. (2022). Use Team Foundation Version Control commands. Microsoft Docs. Retrieved from https://learn.microsoft.com/en-us/azure/devops/repos/tfvc/use-team-foundation-version-control-commands?view=azure-devops (Refer to the section "Use commands").