Assuming the house is in a trust, the proceeds from the sale need to go into a trust account, and the title company probably wants to know who the trustee(s) is/are and the full name of the trust. If the property was held in sub-trusts, (e.g., "X" survivor's trust and "Y" bypass trust), the company needs to know who those trustees are; and how much of the sales proceeds are "cut" to one sub-trust versus the other.
Disclaimer: The materials provided below are informational and should not be relied upon as legal advice
The title company is asking you how it should style the check because a trust is involved. Call the officer closing the deal and discuss the question so you are clear what the title company is asking.