Please choose the correct solution to the question: To make yogurt

Solution1: Boil whole milk until it reaches a tem of 185 degrees. Let cool down to 110 degrees. Add in a cup of live culture yogurt. Keep it at 110 degrees for 12 hours.

Solution2: Boil whole wheat until it reaches a tem of 185 degrees. Let cool down to 110 degrees. Add in a cup of live culture yogurt. Keep it at 110 degrees for 12 hours.

Answer format: solution1/solution2
Answer: solution1