Which of the following is a possible disadvantage of Genetically Modified plants ?

The correct option is A

The bacleria in the alimentary canal can become antibiotic resistant.

The bacteria present in the human alimantary canal can take up antibiotic resistance gene that is present in the GM food and can become difficult to manage.

Reduction in post - harvest loss is an advantage. GM crops does not have strengthening or weakening effect on our immune system. Also, criminal behaviour has nothing to do with Genetic Modification of crops.