Did Bernstein have any connection with the British Labour Party?
Yes, he had contacts
No, he had no connection
Not sure, it's unclear
Yes, but it was confidential
Answer
Bernstein had contacts with the British Labour Party, but he was not an active member. He was, however, a vocal critic of the party's policies and its leaders, and he believed that the party needed to adopt a more radical approach to socialism.
Eduard Bernstein: The Trailblazer of Social Democracy