- A1 January, Wednesday
- B1 January, Thursday
- C31 December, Wednesday
- D2 January, Wednesday
Step-by-Step Solution
A week later the weekday is the same, Wednesday. December has 31 days, so 25 + 7 = 32 → 1 January of the next year. (31 December is only 6 days later; Thursday adds 8 days.)
Answer: A) 1 January, Wednesday