If you're looking for a certain portion of this excerpt that restates the main idea, I would have to say that the first few words explain it very well: "<span>I demand that my books be judged with utmost severity..." The writer of this statement is saying that they wish for their books to only be judged by those who are educated in grammar and logic. </span>
The correct answer is “Most yeomen will have vats and presses for making cheeses—a valuable source of protein in the long winter season.”
Indeed, since for farmers of the previous centuries food was scarcer due to the lack of technological advances they had to rely on reserves of food. Meats had to be stored in a dry place and profusely salted to reduce the rate of decomposition. The same applied for grains since dampness destroyed them. Cheese in the other hand was more easily stored during winter and since both meat and grains were scarcer sources of proteins during the cold season, cheese was an excellent replacement due to its milky nature.
The correct answer is the first word because it should always be capitalized, regardless of whether or not it normally would be.<span />
