Which one among the following is the opening sentence to make the paragraph coherent?

Six statements are given below, which are jumbled in any random order. Only statement (B), which has been emboldened, is in its correct place. These statements will form a coherent and meaningful paragraph, when arranged in the correct sequence. Arrange the sentences in the right order and answer the questions that follow.    
A. Yet the technical and financial problems have fundamentally been solved.   
B. The COP27 summit in Egypt re-iterated sundry climate targets while independent analyses oozed gloom and doom.    
C. Not a day goes by without apocalyptic predictions of climate disaster.   
D. Renewable technologies are already cheaper than those based on fossil fuels, and global markets provide trillions of dollars across borders for viable projects.   E. The Economist had a cover story titled “Goodbye to 1. 5 degrees,” groaning that the race to limit warming was already lost.    F. Others highlighted worst-case scenarios of 4-degree temperature increases.