4.

Answer and Explanation

Your Answer is

Correct Answer is J

Explanation

The first sentence "the National Trust for Historic Preservation has made efforts to fund programs to educate people about the practical and aesthetic value of preserving old barns.", the second sentence "As a result of the trust relationship, nearly 10 states have introduced regulations on Activities to protect the barn." There is no obvious transition or causal relationship before and after, so no correlative is needed.