Edric laughed. In the past, to stop Margaret from bothering him, he had asked John to go to the sperm bank to find a sperm sample to give it to Margaret to find a surrogate. He had said to Margaret that he had told John to go to fetch a sperm sample from a doctor to deceive her.
Therefore, he had asked John to find a sperm provider that was highly educated and healthy. He did not mention anything about the sperm provider's nationality. So, John had passed Edric's request to the doctor and the doctor said that coincidentally, a professor was going to donate his sperm at a later date, so he gave the sperm of the professor to John.