I think the significance of their argument had brought them to marriage. Both Lomov and Natalya often argue about the land that is situated between their properties. At first Lomov, only wanted to propose to Natalya because of their circumstance. However, Lomov had slowly fallen for her.
I would be said that that the letter might reveal he is compassionate. (option D) this might be seen especially in the sentence "<span>which allowed me no room for hesitation", it seems that he was following his heart to fulfill its request, so he could not hesitate, he obeyed immediately. </span>
It is in the present participle.
Past Participle: Jaffa has run in more than a dozen marathons.
The past participle of the verb "run" is "run."
