Correct Answer: 4, 5, 1, 2, 3

Solution : Given:
1. Manger 2. Mango 3. Mangrove 4. Manage 5. Manager

Step I: Compare the first, second and third letters of each word. Since all the words start with the same letter M and are followed by a , n and g , then move on to the next letter.
Step II: The fourth letters are g, g, g, a, a . Based on the alphabetical order of these letters, we can arrange them – Man a ge, Man a ger, Man g er, Man g o, Man g rove.
Step III: The fifth and sixth letters of Mana ge and Mana ge r are the same. However, there is no seventh letter in Manage, hence, Manage will come before Manager in the dictionary.
Step IV: The fifth letters of Mang e r, Mang o , and Mang r ove are e, o , and r . The correct dictionary order for words is Mang e r, Mang o , Mang r ove.

So, the sequence is → Manage, Manager, Manger, Mango, Mangrove or 4, 5, 1, 2, 3. Hence, the second option is correct.