I believe the issue is unnecessary consumption of sugar.
The amount of sugar that average people consume everyday could contribute to around 300-600 of their caloric intake each day, which would increase the risk of developing diabetes. The steps that should be taken to deal with this issue is to increase people's awareness about this issue through campaigns or advertising and providing substitution for this product.
By the lack of details, only you can know that for sure...
If I remember the answer should be C
This refers to the human language is productive, ability to create new linguistic messages freely and easily.

The increase of pollutants from maquadelios in Mexico raised concerns about damage to health and the environment.
pollution is the contamination of pollutants such as harmful gases.
Thanks