Direction: In the following questions, out of the four alternatives, choose the one which can be substituted for the given words/ sentence.
- 
					 Constant efforts to achieve something
- 
                        - patience
- vigour
- attempt
- perseverance
 
Correct Option: D
perseverance (N.) : the quality of continuing to try to achieve a particular aim despite difficulties 
patience (N.) : the ability to stay calm and accept a delay or something annoying without complaining
vigour (N.) : energy, force or enthusiasm; vitality 
attempt (N.) : an act of trying to do something difficult, often with no success
 
	