A2. Babica Magda slept poorly last night. In the middle of the night, she looked at the digital clock, which showed hours and minutes. The digits were four consecutive natural numbers in sequence.

![](https://cdn.mathpix.com/cropped/2024_06_07_41ad29ae87bc570f2592g-2.jpg?height=602&width=619&top_left_y=1275&top_left_x=1301)
Which digits followed each other in sequence?
(A) 0123
(B) 1234
(C) 2345
(D) 3456
(E) None of the above.
A2. Answer (A) is incorrect because 0 is not a natural number. Answer (B) is not appropriate because 12.34 is not a nighttime hour. Answer (D) is incorrect because we do not recognize the time 34.56. The correct answer is (C), which corresponds to the time 23.45.