In context, the second sentence of the fifteenth paragraph ("However, the agreement... legally binding") (lines 59-60)
serves as a transitional element that
implies that the claim discussed earlier in the passage is unsupported
O indicates the author's dismissal of a counterargument discussed in the passage
suggests that the problem discussed in the passage is likely to remain unresolved
reveals the author's regrets about a proposed solution in the passage
O acknowledges a weakness in the author's line of reasoning in the passage