Please urgent please help

Explanation:

1. you mustn,t pick flowers

2.you mustn't climb trees

3.your dogs poop must be cleaned up

4.you must throw away trash

2.You mustn't climb the trees

3.You must clean up after your dog

4.You must throw your rubbish in the bins

answer; /// the correct answer to the above statement is (a) because of the decline on native american labor forces;