Two columns are given in each question and each column has three parts of a sentence. Choose the most suitable pair, which makes a grammatically correct and contextually coherent statement. If none of the pairs is correct, choose option E as your answer.

• A-E (Conditional Sentence): Fragment A sets up a past conditional statement (Had the regulatory authorities...). It connects logically and grammatically with fragment E (...would have progressed much faster). • B-D (Interrogative Sentence): Fragment B begins a question (Did the health ministry mandate...). It flows directly into fragment D (...through a comprehensive audit...), ending with a question mark. • C-F (Declarative / Science Topic): Fragment C describes how quantum computing enables research teams (...enabled research teams). It pairs with fragment F using the standard infinitive verb structure (to simulate complex molecular interactions...).