The correct answers are: The number of competitors in the marketplace and the strategies they adopt; Social attitudes and concern for the environment; Policies adopted by the government.

The organisation's environmental R&D expenditure and their policies on purchasing GM raw materials will obviously affect the business but they are both reactions to environmental influences - not environmental influences in their own right. For example, their policies on purchasing GM free goods may have come about after a market research exercise highlighted customers' preference for GM free food. To keep the same taste and quality of food products may require additional environmental R&D expenditure.