The correct answer is letter B
Reciprocity, from the Latin reciprocĭtas, is the mutual correspondence of one person or thing with another. Something reciprocal is what is done as return, compensation or refund.
Reciprocity can be associated with the expression “today for you, tomorrow for me” because it implies doing for the other what the other has done for us. It is for this reason that it relates to solidarity or hospitality.
The concept is also used to refer to what comes and goes or comes and goes. In this sense, one can speak of the reciprocity of voices (in the case of a debate).
