B) They have a lower water content and higher fat content.
According to the passage, what is the primary reason duck eggs are preferred for baking?
Duck eggs are less suitable for making hollandaise sauce than chicken eggs.
The passage often highlights why duck eggs are considered a premium or "extra quality" food source: Everything you ever wanted to know about duck eggs
Oomancy (divination by eggs) was once a common practice. This involved separating the white of a duck egg and dropping it into a pan of warm water. The shapes formed by the albumen were "read" like tea leaves.
If you can share the actual passage and/or answer key (or describe a few questions from it), I can give a of the answer quality.