The correct answer is A) Rosie doesn't have to cook anymore now that her husband likes to cook.
The best sentence to change from a negative statement to a positive statement is "Rosie doesn't have to cook anymore now that her husband likes to cook.
When writing, you need to use the correct structure to have a good sentence. In this case, the sentence that is best constructed is the firsts one. It has all the elements of a correct and complete structure and makes a lot of sense.
In grammar, remember that there are four types of sentences: simple, with one independent clause; compound with two or more independent clauses; complex, with an independent clause and one or more dependent clauses; and compound-complex, with two or more independent clauses and one or more dependent clauses.
