Who was Joseph Robson and what did he document?

• A. He was a stonemason for the MVBC who kept records of the river's course and published a book titled 'An Account of Six Years Residence in Hudson's Bay' in 1752
• B. He was a mapmaker for the HBC who charted the Albany River
• C. He was a trader who kept a diary
• D. He was a missionary who wrote about missions

Answer: (A)

The key idea is recognizing a firsthand, residence-based account from the Hudson’s Bay era. Joseph Robson is known for spending six years in Hudson’s Bay and keeping records about the river’s course, which he then published in An Account of Six Years Residence in Hudson's Bay in 1752. This makes him a primary-source observer whose writings combine geographic notes with personal observations from that period. The published work itself is the clear sign of his activities: a formal account that stems from his long stay and his recording of the river’s course.

That’s why the selected description fits best: it ties together the person’s role and the specific document he produced. The other possibilities describe different roles (a mapmaker, a diary-keeping trader, a missionary writer), but they don’t align with the known publication that centers on six years of residence and river descriptions.