'At the crack of dawn' means

The correct answer is Option A (very early in the morning).

Key Points:
• Meaning of common time-related idioms in English.
• 'At the crack of dawn' means at the earliest appearance of light in the sky at daybreak, i.e., very early in the morning.
• (2) 'accept the punishment' corresponds to idioms like 'face the music' or 'take one's medicine'.
• Key Takeaway: 'At the crack of dawn' literally and idiomatically means at first daybreak / very early in the morning.