What issue arose regarding Sir Hugh Allan's involvement in the CPR project?

The issue regarding Sir Hugh Allan's involvement in the Canadian Pacific Railway (CPR) project centers on the allegation that he secured a contract through bribery. This controversy emerged when it was revealed that Allan had supposedly engaged in unethical practices to win the contract for constructing the railway. The allegations were serious because they not only called into question the integrity of the contracting process but also had implications for the political landscape of Canada during that time. The scandal surrounding the CPR project highlighted the challenges and complexities involved in large infrastructure projects and the intersection of business and politics in the late 19th century in Canada.

The other options reflect activities that are legitimate aspects of business or project management rather than the contentious issue of corruption. Contributing to financing, overseeing construction, and conducting safety inspections are all standard practices in large construction projects and do not suggest any wrongdoing on their own.