NYS textbooks

I recently decided that Connor should work out of the "official" NYS textbook for Social Studies, "Mastering New York's Grade 5 Social Studies Standards." Previously, I was using Austin's 7th grade textbook, Call to Freedom, and it was getting a bit boring. Well today, Connor declared the new book dumb, and I tend to agree with him. For instance, there is a pie graph showing the percentage of exports from the US Colonies to Great Britain, Ireland, Africa, British West Indies, and Germany. The question asked is, "Using the pie chart above, which continent received the largest percentage of goods shipped from the American colonies in 1770?" Connor, naturally, pointed out that truly the answer should be Africa, since it is the only CONTINENT shown on the pie graph. Luckily, he realized that the correct answer is supposed to be Great Britain, which is NOT a continent, but a country. Yep. The book is going to be a problem. I'm just happy that he doesn't get totally frustrated and over-think these types of errors in books.