The correct answer is D. 34125.
The first option, 23145, is incorrect because the word “no” is not in the correct position. The word “no” should come after the word “action.”
The second option, 51324, is incorrect because the word “further” is not in the correct position. The word “further” should come after the word “required.”
The third option, 32541, is incorrect because the word “is” is not in the correct position. The word “is” should come after the word “action.”
The fourth option, 34125, is the correct answer because it contains all of the words in the correct order. The word “action” is followed by the word “is,” which is followed by the word “no,” which is followed by the word “further,” which is followed by the word “required.”
The word “action” refers to something that is done. The word “is” refers to the present tense. The word “no” refers to the negative. The word “further” refers to the idea of going beyond what is already done. The word “required” refers to something that is necessary.