In the sentences below a phrase is highlighted. Consider the option that can correctly replace the phrase to make the sentences grammatically and contextually correct. Thus the project faced numerous obstacles, the team persevered and delivered the results on time. 

1. The project faced numerous obstacles. 2. The team persevered and delivered the results on time. The word "Thus" is an adverb meaning therefore or consequently, which signals a result or conclusion. It implies the obstacles caused the successful delivery, which is illogical. The sentence requires a subordinating conjunction that signals a concession or contrast. • D. Although is the correct choice because it means in spite of the fact that or even though. It correctly sets up the contrast between the difficulty (obstacles) and the positive outcome (perseverance and timely delivery).