The correct option is B reduce accumulation of herbicides in food articles for health safety
A herbicide is a chemical agent that is used to kill herbs that grow as weeds in an agricultural field. Weeds compete with the main crop for resources and hamper their growth. Thus they are unwanted and are killed using chemical agents.
One of the major disadvantages of using herbicides for weed management is their toxicity and accumulation in the food crops. When herbicides are sprayed over the agricultural field, they often enter the food crops through absorption from soil or simple surface attachment.
Consumption of such food items can affect our health. Hence the main objective of using herbicide resistant GM (genetically modified) crops is to increase health safety. This is achieved by genetically engineering such food crops to become resistant to herbicides such as glyphosate, glufosinate, etc.
It was also believed that, as an added advantage, these herbicide resistant GM crops would provide new options for weed control and allow the usage of low toxicity herbicides in smaller doses. Use of herbicide resistant GM crops allows us to use low toxicity herbicides which would reduce manual labour. But this was not the main objective behind the production of herbicide resistant GM crops.
Encouraging the use of more eco-friendly herbicides is a feature of organic farming and not associated with transgenic crops.