CRA International Inc. surrendered one of four floors it has been leasing at 200 Clarendon St. in Boston from BP Hancock LLC. The lease on the office space had not been scheduled to expire until March 31, 2015. CRA also relinquished its options to extend the term of the lease for two 5-year periods, as well as certain rights it had to expand in the building to another floor. CRA’s Boston-based operations will continue on the three remaining floors of the building. It will pay BP Hancock an estimated $932,000 in connection with the surrender.