Concept:The sentence describes a situation where a decision or action has been taken and cannot be reversed.
Explanation:The expression in the sentence means that the speakers have moved past the point where they can change their minds.
This is commonly called the “point of no return.”
Once this point is reached, the original options are no longer available, and the only way forward is to continue with the chosen course.
Among the choices given, the phrase “irrevocably committed” captures this meaning best.
“Irrevocably” means in a way that cannot be changed or undone.
So the speakers are not just willing to continue; they are bound to continue because turning back is impossible.
The other options are incorrect: “completely at loss” means being confused or puzzled, “already qualified” means having met the requirements, and “perfectly committed” only suggests strong dedication without the idea that the decision is final.
Answer:B. We are irrevocably committed.