45. For the sake of the logic and coherence of this essay, Paragraph 4 should be placed:

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

P1 to P3 describe the protection and development of highway wildflower. P4 talks about the behavior of the person CT. According to the time, the time mark word of P3 is 1930s, and the time mark word of P4 is 1960s, so P4 should be placed in the original position, and A is correct.