Answer:
Circulate a memo to your fellow team members documenting the problem and asking them to formulate some options at the next meeting.
Explanation:
In the context, the customer of our organization sends a feedback claiming that one of the standards developed by our team does not meet the real world situations. For this the best response would be circulating a memo tot he team members stating the problem that arose and asking them to provide some of the solutions or clarification at the next meeting.
This is an appropriate method to deal with the situation as the team members will come up with some solutions which we can explain to the customer for the failure of the standard.