Urban (city) areas rely on food from rural (countryside) areas because in urban citites, there aren't a lot of backyards. People stay in tall apart building built on concrete. There are a lot of streets and sidewalks. Downtown is an urban area. When you go downtown, you don't get much grass and certainly not much open area to grow crops.
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.
We walked to the park- walked (simple predicate), walked to the park (complete predicate)
My brother Ken collects old stamps- collects (simple predicate), collects old stamps (complete predicate)
I cooked a delicious meal- cooked (simple predicate), cooked a delicious meal (complete predicate)
Mom works hard all day- works (simple predicate), works hard all day (complete predicate)
The shy rabbit hopped away quickly- hopped (simple predicate), hopped away quickly (complete predicate)
100 celcius because 100 celsuis is the world
