Option 1 -> "Settled" means to finalize or conclude decisively, which matches the meaning of "clinched the deal."
Option 2 -> "Lost" means to fail to secure something, which is the opposite of clinching a deal.
Option 3 -> "Abandoned" means to give up on something, which contradicts the successful action implied by "clinched."
Option 4 -> "Comprehended" means to understand, but "clinched" refers to securing/finalizing the deal, not understanding it.
Hence, Option 1: settled -> "Clinched" means to secure or finalize something conclusively, particularly in the context of deals or agreements, making "settled" the closest synonym -> correct