- A(a)
- B(b)
- C(c)
- D(d)
Step-by-Step Solution
Each upright mirror reverses left and right once; reversing twice brings everything back, so the second mirror shows the card exactly as it is: (b). (d) is the image after only one mirror, (a) mixes the two, and (c) would need a mirror in water as well.
Answer: B) (b)