i think that it might be c since it shows that recycling recovers the still useful items instead of them turning to waste
Since my family members participate in D, that's my very biased answer.
C is part of that
B is not correct. What will the drawings do? That too can become part of D, but D is the best way to show your concern.
A is the second best answer, but petting zoos are very narrow in what they preserve.
D <<<< ===== answer.
B. the deeper message of a literary work
