The correct answer is: B. Only assumption II is implicit.
The statement “Safety and health practices in many Indian companies are well below the international standards” does not provide enough information to support assumption I. It is possible that international standards of health and safety are ideal and unrealistic, but it is also possible that they are realistic and achievable. The statement does not provide any information about the feasibility of international standards.
The statement does, however, provide some support for assumption II. If safety and health practices in many Indian companies are well below the international standards, then it is likely that Indian organizations do not consider safety and health management as their prime social responsibility. This is because organizations that consider safety and health management to be their prime social responsibility would be more likely to have safety and health practices that meet or exceed international standards.
Therefore, the only assumption that is implicit in the statement is assumption II.