Answer:
[tex]2 \sqrt{7} - \sqrt{28} \\ = 2 \sqrt{7} - \sqrt{2 {}^{2} \times 7 } \\ = 2 \sqrt{7} - 2 \sqrt{7} \\ = 0[/tex]
So , the answer is 0...
second optionis the correct answer...
It is rational and equal to 0....
Hopes to get BRAINLIEST....
Thank you ☺️
