The way you wrote those options, it would seem that none of them are correct. You can eliminate A and C immediately, because in A, the infinitive form of the verb salir is used (when you should use the present form), and in C, the form salis refers to vosotros/vosotras, not to ellos.
This means that the correct answer has to be B, but you've misspelled sales - it should be saleN. If that is the case, then you should definitely choose B.
The correct answer is C. I am absolutely positive.
C. I know you are busy with exams.
Answer: Perform metric analysis: The last shadow will be able to close my eyes, that the white day will take me, and this soul of mine will be able to unleash now, to its eager flattery; but not from this other part on the shore will the memory leave where it burned; to swim knows my flame the cold water and to lose the respect to severe law; Soul to whom a God has been a prison, veins that have given humor to so much fire, marrow that so gloriously burned.
It means: WHAT TIME DO U LEAVE FOR SCHOOL?
