The water being very cold, I could not drink it. (Change the sentence into complex)

• ক When the water was very cold, I could not drink it.
• খ The water which is very cold I could not drink it.
• গ Since the water was very cold, I could not drink it. ✅ সঠিক উত্তর
• ঘ Though the water was very cold, I could not drink it.