Sentence Structure Correction Challenge

Despite the complexity of the task at hand, the committee proceeded with the project, which required extensive collaboration among various departments. This decision, while contested by some members, emphasized the need for unified efforts. When reviewing the overall progress, the manager realized that the reports, which outlined the milestones achieved, had not been consistent across all teams, thus creating confusion among stakeholders.

Which of the following alternatives corrects the structure of the second sentence in the passage without altering its meaning?