मुख्य कथन दिया गया है: 'वह या तो साक्षर है या निरक्षर है'। चार अलग-अलग कथनों को इस प्रकार लेबल किया गया है: A. वह साक्षर है B. वह साक्षर नहीं है C. वह निरक्षर है D. वह निरक्षर नहीं है कथनों का वह क्रमित युग्म चुनिए जहाँ पहला कथन तार्किक रूप से दूसरे को दर्शाता है, और दोनों मुख्य कथन के साथ सुसंगत हैं।

Read the information and answer the question that follows: In the last few years, several new shopping malls were opened in the city. The total number of visitors in the malls is unimpressive. However, the total revenue generated through sales in the shops in these malls is generally high. Which one of the following is the most appropriate logical inference based on the information in the above passage?

Traffic congestion reduced by 15% after introducing staggered office timings. Which is the most valid judgement?