The correct answer is: A. create problems.
The phrase “run into rough weather” means to encounter difficulties or problems. This is the most likely interpretation of the phrase in the context of the question, which is about a new economic policy. A new policy is likely to face challenges, and it is important to be aware of these challenges before implementing the policy.
The other options are not as likely interpretations of the phrase. Option B, “encounter difficulties,” is similar to option A, but it is not as specific. Option C, “confuse matters,” is not a likely interpretation of the phrase, as it does not make sense to say that a policy is likely to confuse matters. Option D, “makes things difficult,” is also not a likely interpretation of the phrase, as it does not make sense to say that a policy is likely to make things difficult.
In conclusion, the correct answer is: A. create problems.