UK Stocks-Factors to watch on Feb. 23

Feb 23 (Reuters) - Britain's FTSE 100 index is seen opening 4 points higher, or up 0.05 percent on Thursday, according to Financial spreadbetters. * The blue-chip FTSE 100 index ended up 0.4 percent at 7302.25 points, as Lloyds reported its highest annual profit in a decade and Unilever promised a far-reaching review. * BANK OF ENGLAND: Bank of England Deputy Governor Jon Cunliffe warned on Wednesday that requiring financial instruments to be cleared in a country that uses the c