Please choose the correct answer to the question: Which three events are likely to occur once per day?

Answer1: 3 cycles of day, 3 cycles of night, and birds chirping as the sun rises Answer2: a cycle of day, a cycle of night, and a motorcycle Answer3: a cycle of day, a cycle of night, and birds chirping as the sun rises Answer4: a cycle of day, a cycle of night, and birds flying

Answer format: answer1/answer2/answer3/answer4