Which among the following is not an objective of biofortification ?

Improve resistance to disease.

The correct answer is Option (2) – Improve resistance to disease.

Biofortification – breeding crops with higher levels of vitamins and minerals, or higher protein and healthier fats – is the most practical means to improve public health. Breeding for improved nutritional quality is undertaken with the objectives of improving –

(i) Protein content and quality

(ii) Oil content and quality

(iii) Vitamin content; and

(iv) Micronutrient and mineral content.

Improving resistance to disease is more related to developing crops with better agronomic traits, which can be achieved through traditional breeding or genetic modification, but it is not a direct objective of biofortification, which focuses on enhancing the nutritional profile of crops.