Goldman Sachs Group Inc., the fifth- biggest U.S. bank by assets, received a subpoena from the Manhattan District Attorney’s office seeking information on the firm’s activities leading into the credit crisis, according to two people familiar with the matter. “We don’t comment on specific regulatory or legal issues, but subpoenas are a normal part of the information request process and, of course, when we receive them we cooperate fully,” said David Wells, a company spokesman. The request relates to the U.S. Senate’s Permanent Subcommittee on Investigations report on Wall Street’s role in the housing market collapse, which accused New York-based Goldman Sachs of misleading buyers of mortgage-linked investments, the people said.