Answer:
Option B. "Then" would be a logical insertion at the beginning of sentence 12.
Step-by-step explanation:
When reading sentences 10 and 11, the reader can get an idea of the topic of the paragraph and the structure that sentence 12 should have to be cohesive with the rest of the sentences. As the paragraph is making a reference on cod cakes and how they are prepared, the logical insertion to put at the beginning of sentence 12 would be the word "then" so that it creates a link between the end of sentence 11 and sentence 12.
(11)A cod cake is made from chunks of cod, potatoes, onions, and herbs. Then the mixture is breaded and fried and often served with a sauce.