Select the option that indicates the correct arrangement of the following words in a logical and meaningful order.
1. The United Kingdom
2. World
3. Buckingham Palace
4. London
5. Europe

Which one of the following responses would be a meaningful order of the following?
1. Leaf
2. Fruit
3. Stem
4. Roots
5. Flower

Which one of the given responses would be a meaningful order of the following?
1. Study 
2. Employment
3. Pass
4. Admission
5. Examination

Select the correct option that indicates the arrangement of the following words in a logical and meaningful order.
1. Hexagon
2. Triangle
3. Pentagon
4. Square
5. Octagon