Answer:
No donation should be made by the manager
Step-by-step explanation:
The best thing the manager should do is not to make any donation as he is aware that the the big man heads a criminal organization that is engaged in drug trafficking, By implication, the big man is indirectly providing fund to the drug trafficking organisation,
In addition, the act of helping the poor in the neighborhood is not a justification for running a drug trafficking organisation by the big man.
The manager should take action by reporting the bug man to the relevant local authority and provide them any information he has about the big man so that they can handle everything appropriately. If he does this, he is carrying his own and company's social responsibility function.