 
 <prompt> Which factors fit get di biggest effect on top di health of a river system?
Available choices: 1). type of soil and salinity; 2). nitrate levels and turbidity; 3). human consumption and pH; 4). natural disasters and tidal changes; <response>: ```2).```
Translate the text above to Nigerian pidgin. If there is programming code in it, leave as is. Do not add any extra statement in your response: 