47.
Your Answer is
Correct Answer is D
Explanation
According to the meaning of the sentence "she and her husband moved to a farm in Kansas, trying to regain the security of property", so it is judged that the logical subject of attempt is she and her husband.
Item D: The prepositional phrase in an attempt to is a fixed collocation, which means trying to do something, and it is issued as the subject, correct.
Item A: Because there is no comma between attempting and Kansas, it is wrong to modify Kansas.
Item B: Two complete sentences are separated by commas, wrong.
Item C: The attributive clause modifies Kansas, wrong.