C. An environmental experts’s article on water pollution
I may be wrong but maybe it's a comma..
Don Quixote is a fictional character in a novel by Miguel de Cervantes which was first published in 1605. It is about the adventures of a man : Alonso Quixano who seeks to revive chivalry.
It is considered to be the most influential work of literature from the Spanish Golden Age,
Duncan is so happy and excited when he gets to the castle, and praises Lady Macbeth for how nice, warm, and welcoming she is. What he doesn't know, but the audience does, is that she is already planning on killing him, which is what makes this dramatic irony.
Option C is the correct answer: have been working.
