I have this question from a friend.
I suppose it is from a book.
We We have no idea where to start.
Can someone help me with What is the correct answer, and what is the correct reasoning?
Thank you!
The question is from the bookSource: "Ghid de pregătire pentru concursul de directori/ directori adjuncți din învățământul preuniversitar", Gabriel Vrânceanu, Gabriela Bărbulescu,... Editura Scrib, București, 2016