'Golden rice' variety of rice shows:

The correct answer is Option (1) → enhanced nutritional value of food

Golden rice is a genetically modified rice that is rich in vitamin A.

Option (1) enhanced nutritional value of food — Correct. Golden rice is a variety rich in vitamin A. Crops like this are bred for enhanced nutritional value of food, one of the aims of genetically modified crops.

Option (2) less post harvest loss — Incorrect. Reducing post-harvest loss is another benefit of GM crops, not the one golden rice shows.

Option (3) tolerance to abiotic stress — Incorrect. Tolerance to cold, drought, salt or heat is a different GM trait.

Option (4) pest resistance — Incorrect. Pest resistance is the trait of Bt crops.

NCERT Extract:
Biotechnological Applications in Agriculture – “… Plants, bacteria, fungi and animals whose genes have been altered by manipulation are called Genetically Modified Organisms (GMO). GM plants have been useful in many ways. Genetic modification has:
(i) made crops more tolerant to abiotic stresses (cold, drought, salt, heat).
(ii) reduced reliance on chemical pesticides (pest-resistant crops).
(iii) helped to reduce post harvest losses.
(iv) increased efficiency of mineral usage by plants (this prevents early exhaustion of fertility of soil).
(v) enhanced nutritional value of food, e.g., golden rice, i.e., Vitamin ‘A’ enriched rice.”