Read passage given below and choose the answer the question that follow.

Trees give shade for the benefit of others and while they themselves stand in the sun and endure scorching heat, they produce the fruit by which others profit. The character of good men is like that of trees. What is the use of this perishable body, if no use of it is made, for the benefit of mankind? Sandalwood - the more it is rubbed the more scent does it yield. Sugarcane - the more it is peeled and cut into pieces, the more juice does it produce. Gold - the more it is burnt, the more brightly does it shine. The men who are noble at heart do not lose these qualities even in the face of death. What does it matter whether men praise them or not? What difference does it make whether riches abide with them or not? What does it signify whether they die at this moment or whether their lives are prolonged? Whatever may happen, those who tread on the right path will not set foot in any other. Life itself is unprofitable to a man who does not live for others. Those who lay down their lives for the sake of a friend, or even for the sake of a stranger, will assuredly dwell forever in a world of bliss.

Complete the given sentence by choosing the appropriate options :

One can be assured to dwell forever in the world of bliss by :

laying down ones life for the benefit of others.