§ Mr. Meacherasked the Chancellor of the Exchequer how many stock option or share incentive schemes in accordance 351W with criteria laid down in the Finance Act 1972 have been approved, even if not yet implemented under the stages 1–3 regulations; how many persons are involved; what are the main types of scheme; and what is estimated to be the likely average gain under each of these main schemes to executives at different income levels.