tolong dongg.. lagi butuh banget penjelasaannya...

QUESTIONS
Answer :
1) C. All visitors
because who else can feed the animals except the visitors, just the visitors who enter the bus and be inside it

2) A. Are not in the cages
the visitors are the one who be inside the cage (bus), instead of the animals

3) C. To congratulate Yohanita
we can see word "CONGRATULATIONS" at line 2, so the letter is written to congratulate Yohanita for being the best graduate of her school that year

4) B. Clever
there's sentence "... because of your best marks of all subjects of the final examination." and she is the best graduate, those all mean that she's a clever student