Which of the following sentences uses correct conditional grammar?

• ক If it’s sunny tomorrow, we will go to the beach. ✅ সঠিক উত্তর
• খ If you heat water to 100 degrees Celsius, it will boil.
• গ If he studied harder, he would passed the exam.
• ঘ If I had listened to my parents, I wouldn't had made that mistake.