Lin Xun carefully reviewed the four options given in the game text.
The first option was to run away, the second was to negotiate using the body of a Beastman, the third was to send in the three-headed lion to lure the tiger away from the mountain, and the fourth was to fight head-on.
Out of the four options, only the second and third seemed plausible.
After careful consideration, Lin Xun decided to choose the second option, to negotiate using the Beastman's body.
Even if this was the wrong choice, at worst he'd only lose a Beastman's body with no other losses.
Having thought about it, he decided to use an elder from the Filth Blood Beastman racial group, an aged Beastman, which should increase the chances of successful negotiation.
[You have possessed the 'Shell of the Fallen Elder Beastman.']
Just to be safe, Lin Xun canceled the summoning of the three-headed lion first to prevent any harm coming to the small lion cubs should the negotiations fail.