Flurry of strong earnings boosts FTSE

By Alistair Smout LONDON (Reuters) - Britain's top share index rose on Thursday as investors favoured telecom firm BT , insurer RSA and grocer WM Morrison after strong results. The telecom firm said it would spend 6 billion pounds on rolling out superfast fibre and 4G mobile in the next three years following criticism from regulators who have demanded an improved service. "It's hoped this will help placate concerns aired by Ofcom," Tony Cross, market analyst at Trustnet Direct, said in a note.